diff --git a/taskcluster/ci/test/misc.yml b/taskcluster/ci/test/misc.yml
index 2789ff4d0790..6f240df5480b 100644
--- a/taskcluster/ci/test/misc.yml
+++ b/taskcluster/ci/test/misc.yml
@@ -11,10 +11,6 @@ geckoview-junit:
         by-test-platform:
             android-em-7.0-x86/opt: 3
             default: default
-    run-on-projects:
-        by-test-platform:
-            android-em-7.0-x86/opt: ['mozilla-central']
-            default: built-projects
     chunks:
         by-test-platform:
             android-em-4.3-arm7-api-16-ccov/debug: 4
diff --git a/taskcluster/ci/test/mochitest.yml b/taskcluster/ci/test/mochitest.yml
index 1081e233b7e0..52d0486ec8d9 100644
--- a/taskcluster/ci/test/mochitest.yml
+++ b/taskcluster/ci/test/mochitest.yml
@@ -207,10 +207,6 @@ mochitest-clipboard:
         by-test-platform:
             linux32/debug: both
             default: true
-    run-on-projects:
-        by-test-platform:
-            android-em-7.0-x86/opt: ['mozilla-central']
-            default: built-projects
     mozharness:
         mochitest-flavor: plain
         extra-options:
@@ -251,10 +247,7 @@ mochitest-gpu:
     description: "Mochitest GPU run"
     suite: mochitest/gpu
     treeherder-symbol: M(gpu)
-    run-on-projects:
-        by-test-platform:
-            android-em-7.0-x86/opt: ['mozilla-central']
-            default: built-projects
+    run-on-projects: built-projects
     loopback-video: true
     instance-size:
         by-test-platform:
diff --git a/taskcluster/ci/test/reftest.yml b/taskcluster/ci/test/reftest.yml
index 7769181164c7..ecb177075513 100644
--- a/taskcluster/ci/test/reftest.yml
+++ b/taskcluster/ci/test/reftest.yml
@@ -36,10 +36,7 @@ crashtest:
     description: "Crashtest run"
     suite: reftest/crashtest
     treeherder-symbol: R(C)
-    run-on-projects:
-        by-test-platform:
-            android-em-7.0-x86/opt: ['mozilla-central']
-            default: built-projects
+    run-on-projects: built-projects
     instance-size:
         by-test-platform:
             android-em.*: xlarge
@@ -68,10 +65,7 @@ jsreftest:
     suite: reftest/jsreftest
     schedules-component: jsreftest  # scheduling for this reftest is different from the others..
     treeherder-symbol: R(J)
-    run-on-projects:
-        by-test-platform:
-            android-em-7.0-x86/opt: ['mozilla-central']
-            default: built-projects
+    run-on-projects: built-projects
     instance-size:
         by-test-platform:
             android-em.*: xlarge