Revert of Added GYP defines to dump linux symbols for gpu perf bots and trybots.

scripts/slave/recipe_modules/gpu/api.py

 # Copyright 2013 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 infra.libs.infra_types import freeze
 from slave import recipe_api
 
 import common
 
 SIMPLE_TESTS_TO_RUN = freeze([
@@ skipping 46 matching lines @@
 
     # To more easily diagnose failures from logs, enable logging in
     # Blink Release builds.
     self.m.chromium.apply_config('blink_logging_on')
 
     # Use the default Ash and Aura settings on all bots (specifically Blink
     # bots).
     self.m.chromium.c.gyp_env.GYP_DEFINES.pop('use_ash', None)
     self.m.chromium.c.gyp_env.GYP_DEFINES.pop('use_aura', None)
 
-    # To print out callstacks on linux bots, we must output symbols as well.
-    if self.m.platform.is_linux:
-      self.m.chromium.c.gyp_env.GYP_DEFINES['linux_dump_symbols'] = 1
-
     # Enable archiving the GPU tests' isolates in chrome_tests.gypi.
     # The non-GPU trybots build the "all" target, and these tests
     # shouldn't be built or run on those bots.
     self.m.chromium.c.gyp_env.GYP_DEFINES['archive_gpu_tests'] = 1
 
     # TODO(kbr): remove the workaround for http://crbug.com/328249 .
     # See crbug.com/335827 for background on the conditional.
     if not self.m.platform.is_win:
       self.m.chromium.c.gyp_env.GYP_DEFINES['disable_glibcxx_debug'] = 1
 
@@ skipping 443 matching lines @@
     if extra_browser_args:
       extra_browser_args_string += ' ' + ' '.join(extra_browser_args)
     test_args.append(extra_browser_args_string)
 
     return self.m.chromium.steps.TelemetryGPUTest(
         name, chrome_revision, webkit_revision, args=test_args,
         target_name=target_name, enable_swarming=enable_swarming,
         swarming_dimensions=swarming_dimensions,
         master_class_name=self._master_class_name_for_testing,
         swarming_extra_suffix=self._get_gpu_suffix(swarming_dimensions))