diff --git a/js/src/tests/lib/structuredlog.py b/js/src/tests/lib/structuredlog.py
index 0a9104a3c1e9..eec46c0cbd0a 100644
--- a/js/src/tests/lib/structuredlog.py
+++ b/js/src/tests/lib/structuredlog.py
@@ -1,8 +1,6 @@
 # produce mozlog-compatible log messages, following the spec at
 # https://mozbase.readthedocs.io/en/latest/mozlog.html
 
-from __future__ import print_function
-
 import json
 import os
 
@@ -16,8 +14,6 @@ class TestLogger(object):
             'thread': threadname,
             'pid': os.getpid(),
         }
-        directory = os.environ.get("MOZ_UPLOAD_DIR", ".")
-        self.fh = open(os.path.join(directory, threadname + "_raw.log"), "a")
 
     def _record(self, **kwargs):
         record = self.template.copy()
@@ -27,7 +23,7 @@ class TestLogger(object):
         return record
 
     def _log_obj(self, obj):
-        print(json.dumps(obj, sort_keys=True), file=self.fh)
+        print(json.dumps(obj, sort_keys=True))
 
     def _log(self, **kwargs):
         self._log_obj(self._record(**kwargs))