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

scripts/slave/recipe_modules/chromium/config.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.
 
 import pipes
 
 from slave.recipe_config import config_item_context, ConfigGroup
 from slave.recipe_config import Dict, List, Single, Static, Set, BadConf
 from slave.recipe_config_types import Path
 
@@ skipping 469 matching lines @@
 def _memory_tool(c, tool):
   if tool not in MEMORY_TOOLS:  # pragma: no cover
     raise BadConf('"%s" is not a supported memory tool, the supported ones '
                   'are: %s' % (tool, ','.join(MEMORY_TOOLS)))
   c.runtests.memory_tool = tool
 
 @config_ctx()
 def trybot_flavor(c):
   fastbuild(c, optional=True)
   dcheck(c, optional=True)
-  linux_dump_symbols(c)
 
 @config_ctx()
 def gn_component_build(c):
   c.gn_args.append('is_component_build=true')
 
 @config_ctx()
 def gn_minimal_symbols(c):
   c.gn_args.append('symbol_level=1')
 
 #### 'Full' configurations
@@ skipping 243 matching lines @@
   # Some of the binaries needed by the PGO gets copied into the build directory
   # during the build, we need to augment the PATH variable so it can find them
   # during the profiling step.
   c.env.PATH.extend([c.build_dir.join(c.build_config_fs)])
 
 @config_ctx(includes=['chromium_pgo_base'])
 def chromium_pgo_optimize(c):
   c.gyp_env.GYP_DEFINES['chrome_pgo_phase'] = 2
 
 @config_ctx()
-def linux_dump_symbols(c):
-  if c.TARGET_PLATFORM == 'linux':
-    c.gyp_env.GYP_DEFINES['linux_dump_symbols'] = 1
-
-@config_ctx()
 def v8_optimize_medium(c):
   c.gyp_env.GYP_DEFINES['v8_optimized_debug'] = 1
   c.gyp_env.GYP_DEFINES['v8_enable_slow_dchecks'] = 1
 
 @config_ctx()
 def v8_verify_heap(c):
   c.gyp_env.GYP_DEFINES['v8_enable_verify_heap'] = 1
 
 @config_ctx()
 def chromium_perf(c):
   c.compile_py.clobber = False
 
 @config_ctx()
 def chromium_perf_fyi(c):
   c.compile_py.clobber = False
   if c.HOST_PLATFORM == 'win':
     c.compile_py.compiler = None
     c.compile_py.goma_dir = None
     c.gyp_env.GYP_DEFINES['use_goma'] = 0
 
 @config_ctx()
 def chromium_deterministic_build(c):
   c.gyp_env.GYP_DEFINES['dont_embed_build_metadata'] = 1
 
 @config_ctx(includes=['chromium_clang'])
 def cast_linux(c):
   c.gyp_env.GYP_DEFINES['chromecast'] = 1
   c.compile_py.default_targets = ['cast_shell', 'cast_test_lists']