[Telemetry] Re-enable ActionRunnerMeasureMemoryTest in reference builds

telemetry/telemetry/internal/actions/action_runner_unittest.py

Index: telemetry/telemetry/internal/actions/action_runner_unittest.py
diff --git a/telemetry/telemetry/internal/actions/action_runner_unittest.py b/telemetry/telemetry/internal/actions/action_runner_unittest.py
index ca04e80d4ef1b557e5b236dfa4273d66f7d1ab97..e9d4de1eca234d4db275f54119cbd637154c269c 100644
--- a/telemetry/telemetry/internal/actions/action_runner_unittest.py
+++ b/telemetry/telemetry/internal/actions/action_runner_unittest.py
@@ -91,15 +91,9 @@ class ActionRunnerMeasureMemoryTest(tab_test_case.TabTestCase):
     dump_ids = (d.dump_id for d in timeline_model.IterGlobalMemoryDumps())
     self.assertIn(dump_id, dump_ids)
 
-  # TODO(perezju): Enable when reference browser is >= M53
-  # https://github.com/catapult-project/catapult/issues/2610
-  @decorators.Disabled('reference')
   def testDeterministicMode(self):
     self._TestWithTracing(deterministic_mode=True)
 
-  # TODO(perezju): Enable when reference browser is >= M53
-  # https://github.com/catapult-project/catapult/issues/2610
-  @decorators.Disabled('reference')
   def testRealisticMode(self):
     with mock.patch.object(self.action_runner,
                            'ForceGarbageCollection') as mock_method: