Revert of Added unit test for stack traces in telemetry crashes.

tools/perf/core/stacktrace_unittest.py

Index: tools/perf/core/stacktrace_unittest.py
diff --git a/tools/perf/core/stacktrace_unittest.py b/tools/perf/core/stacktrace_unittest.py
deleted file mode 100644
index be13fbaad9be3ad7d2ed32759af214dd7b705619..0000000000000000000000000000000000000000
--- a/tools/perf/core/stacktrace_unittest.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2015 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-from telemetry.core import exceptions
-from telemetry import decorators
-from telemetry.testing import tab_test_case
-
-class TabStackTraceTest(tab_test_case.TabTestCase):
-
-  # For now just work on a single platform (mac).
-  @decorators.Enabled('mac')
-  def testStackTrace(self):
-    try:
-      self._tab.Navigate('chrome://crash', timeout=5)
-    except exceptions.DevtoolsTargetCrashException as e:
-      self.assertIn('Thread 0 (crashed)', '\n'.join(e.stack_trace))
-
-  # Currently stack traces do not work on windows: http://crbug.com/476110
-  # Currently symbols do not work on swarming: http://crbug.com/563716
-  # Linux stack traces depends on fission support: http://crbug.com/405623
-  @decorators.Disabled('all')
-  def testCrashSymbols(self):
-    try:
-      self._tab.Navigate('chrome://crash', timeout=5)
-    except exceptions.DevtoolsTargetCrashException as e:
-      self.assertIn('CrashIntentionally', '\n'.join(e.stack_trace))