--- a/testing/marionette/harness/marionette_harness/marionette_test/testcases.py
+++ b/testing/marionette/harness/marionette_harness/marionette_test/testcases.py
@@ -13,17 +13,16 @@ import weakref
 
 from unittest.case import (
     _ExpectedFailure,
     _UnexpectedSuccess,
     SkipTest,
 )
 
 from marionette_driver.errors import (
-    MarionetteException,
     TimeoutException,
 )
 from mozlog import get_default_logger
 
 
 def _wraps_parameterized(func, func_suffix, args, kwargs):
     """Internal: Decorator used in class MetaParameterized."""
     def wrapper(self):
@@ -306,36 +305,24 @@ class MarionetteTestCase(CommonTestCase)
                                       methodName=testname,
                                       filepath=filepath,
                                       testvars=testvars,
                                       **kwargs))
 
     def setUp(self):
         super(MarionetteTestCase, self).setUp()
         self.marionette.test_name = self.test_name
-        self.marionette.execute_script(r"dump('TEST-START: {0}\n')"
-                                       .format(self.test_name),
-                                       sandbox="simpletest")
 
     def tearDown(self):
         # In the case no session is active (eg. the application was quit), start
         # a new session for clean-up steps.
         if not self.marionette.session:
             self.marionette.start_session()
 
-        if not self.marionette.crashed:
-            try:
-                self.marionette.execute_script(r"dump('TEST-END: {0}\n')"
-                                               .format(self.test_name),
-                                               sandbox="simpletest")
-                self.marionette.test_name = None
-            except (MarionetteException, IOError):
-                # We have tried to log the test end when there is no listener
-                # object that we can access
-                pass
+        self.marionette.test_name = None
 
         super(MarionetteTestCase, self).tearDown()
 
     def wait_for_condition(self, method, timeout=30):
         timeout = float(timeout) + time.time()
         while time.time() < timeout:
             value = method(self.marionette)
             if value: