Remove Windows/AMD from chromium.gpu and win_chromium_rel_ng.

scripts/slave/recipe_modules/chromium_tests/chromium_gpu.py

 # 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 . import steps
 
 SPEC = {
   'settings': {
     'build_gs_bucket': 'chromium-gpu-archive',
     # WARNING: src-side runtest.py is only tested with chromium CQ builders.
@@ skipping 79 matching lines @@
         steps.generate_gtest,
         steps.generate_script,
         steps.generate_isolated_script,
       ],
       'parent_buildername': 'GPU Win Builder (dbg)',
       'testing': {
         'platform': 'win',
       },
       'enable_swarming': True,
     },
-    'Win7 Release (ATI)': {
-      'chromium_config': 'chromium',
-      'chromium_apply_config': ['ninja_confirm_noop'],
-      'gclient_config': 'chromium',
-      'chromium_config_kwargs': {
-        'BUILD_CONFIG': 'Release',
-        'TARGET_BITS': 32,
-      },
-      'bot_type': 'tester',
-      'test_generators': [
-        steps.generate_gtest,
-        steps.generate_script,
-        steps.generate_isolated_script,
-      ],
-      'parent_buildername': 'GPU Win Builder',
-      'testing': {
-        'platform': 'win',
-      },
-      'enable_swarming': True,
-    },
     'GPU Linux Builder': {
       'chromium_config': 'chromium',
       'chromium_apply_config': [
         'mb',
         'ninja_confirm_noop',
         'archive_gpu_tests',
         'chrome_with_codecs'
       ],
       'gclient_config': 'chromium',
       'chromium_config_kwargs': {
@@ skipping 192 matching lines @@
       ],
       'bot_type': 'tester',
       'parent_buildername': 'GPU Mac Builder (dbg)',
       'testing': {
         'platform': 'mac',
       },
       'enable_swarming': True,
     },
   },
 }