diff --git a/testing/mozharness/configs/builds/releng_base_android_64_builds.py b/testing/mozharness/configs/builds/releng_base_android_64_builds.py
index 70ee34d283e9..1803711decf5 100644
--- a/testing/mozharness/configs/builds/releng_base_android_64_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_android_64_builds.py
@@ -11,7 +11,6 @@ config = {
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
     'max_build_output_timeout': 0,
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_base_linux_32_builds.py b/testing/mozharness/configs/builds/releng_base_linux_32_builds.py
index 5041559289b2..b4b8337ac21a 100644
--- a/testing/mozharness/configs/builds/releng_base_linux_32_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_linux_32_builds.py
@@ -15,7 +15,6 @@ config = {
         'check-test',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_base_linux_64_builds.py b/testing/mozharness/configs/builds/releng_base_linux_64_builds.py
index 0067dd77be29..7f8a763c4c77 100644
--- a/testing/mozharness/configs/builds/releng_base_linux_64_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_linux_64_builds.py
@@ -14,7 +14,6 @@ config = {
         'check-test',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_base_mac_64_cross_builds.py b/testing/mozharness/configs/builds/releng_base_mac_64_cross_builds.py
index cec27eed3006..43c5f685d273 100644
--- a/testing/mozharness/configs/builds/releng_base_mac_64_cross_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_mac_64_cross_builds.py
@@ -9,7 +9,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_base_windows_32_mingw_builds.py b/testing/mozharness/configs/builds/releng_base_windows_32_mingw_builds.py
index 3938e109bb71..e73691a0169b 100755
--- a/testing/mozharness/configs/builds/releng_base_windows_32_mingw_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_windows_32_mingw_builds.py
@@ -9,7 +9,6 @@ config = {
     # releng_base_linux_64_builds.py
 
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_base_windows_64_mingw_builds.py b/testing/mozharness/configs/builds/releng_base_windows_64_mingw_builds.py
index 54716bea92d4..182d822a25aa 100755
--- a/testing/mozharness/configs/builds/releng_base_windows_64_mingw_builds.py
+++ b/testing/mozharness/configs/builds/releng_base_windows_64_mingw_builds.py
@@ -9,7 +9,6 @@ config = {
     # releng_base_linux_64_builds.py
 
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/32_artifact.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/32_artifact.py
index e263b1595c5e..d1327d35eda8 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/32_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/32_artifact.py
@@ -13,9 +13,7 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
-    # allows triggering of dependent jobs when --artifact try syntax is detected
     #########################################################################
 
 
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/32_debug_artifact.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/32_debug_artifact.py
index 2b65c679d0b3..9f87b84dfb23 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/32_debug_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/32_debug_artifact.py
@@ -13,7 +13,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
     # debug specific
     'debug_build': True,
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_artifact.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_artifact.py
index 6d053e7af385..41d18344484c 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_artifact.py
@@ -6,7 +6,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
@@ -16,7 +15,6 @@ config = {
          'min_scm_level': 2, 'default': 'try-build-has-no-secrets'},
     ],
     'vcs_share_base': '/builds/hg-shared',
-    # allows triggering of dependent jobs when --artifact try syntax is detected
     #########################################################################
 
 
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_debug_artifact.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_debug_artifact.py
index 15e24f8c701b..46732616f42c 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_debug_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_debug_artifact.py
@@ -9,7 +9,6 @@ config = {
     'vcs_share_base': '/builds/hg-shared',
     # debug specific
     'debug_build': True,
-    # decides whether we want to use moz_sign_cmd in env
     # allows triggering of test jobs when --artifact try syntax is detected
     #########################################################################
 
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_searchfox_and_debug.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_searchfox_and_debug.py
index a629c2f67553..8e899e072779 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_searchfox_and_debug.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_searchfox_and_debug.py
@@ -7,7 +7,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
     #########################################################################
 
diff --git a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stat_and_debug.py b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stat_and_debug.py
index e46989caa4de..f25f7ff65c4a 100644
--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stat_and_debug.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_stat_and_debug.py
@@ -7,7 +7,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
     #########################################################################
 
diff --git a/testing/mozharness/configs/builds/releng_sub_mac_configs/64_artifact.py b/testing/mozharness/configs/builds/releng_sub_mac_configs/64_artifact.py
index c051d5e56ff4..e05cc2cbb0af 100644
--- a/testing/mozharness/configs/builds/releng_sub_mac_configs/64_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_mac_configs/64_artifact.py
@@ -8,9 +8,7 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
-    # allows triggering of dependent jobs when --artifact try syntax is detected
     #########################################################################
 
 
diff --git a/testing/mozharness/configs/builds/releng_sub_mac_configs/64_debug_artifact.py b/testing/mozharness/configs/builds/releng_sub_mac_configs/64_debug_artifact.py
index 49247d5f0747..e41c38d39592 100644
--- a/testing/mozharness/configs/builds/releng_sub_mac_configs/64_debug_artifact.py
+++ b/testing/mozharness/configs/builds/releng_sub_mac_configs/64_debug_artifact.py
@@ -8,7 +8,6 @@ config = {
         'build',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': '/builds/hg-shared',
     # debug specific
     'debug_build': True,
diff --git a/testing/mozharness/configs/builds/taskcluster_base_windows.py b/testing/mozharness/configs/builds/taskcluster_base_windows.py
index a4dde10959d5..787e12ca3ab5 100644
--- a/testing/mozharness/configs/builds/taskcluster_base_windows.py
+++ b/testing/mozharness/configs/builds/taskcluster_base_windows.py
@@ -6,7 +6,6 @@ config = {
         'check-test',
     ],
     'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
-    # decides whether we want to use moz_sign_cmd in env
     'vcs_share_base': os.path.join('y:', os.sep, 'hg-shared'),
     'max_build_output_timeout': 60 * 80,