Revert "Enable compilation of angle_end2end_tests on Linux"

chrome/chrome_tests.gypi

 # 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.
 {
   'variables': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 3230 matching lines @@
                   'dependencies': [
                     '../gpu/gles2_conform_support/gles2_conform_test.gyp:gles2_conform_test',
                     'gpu_tests_base',
                   ],
                   'sources': [
                     'gles2_conform_test.isolate',
                   ],
                 },
               ],
             }],
-            ['OS=="win" or OS=="linux"', {
+            ['OS=="win"', {
               'targets': [
                 {
                   'target_name': 'angle_end2end_tests_run',
                   'type': 'none',
                   'dependencies': [
                     '../gpu/gpu.gyp:angle_end2end_tests',
                     'gpu_tests_base',
                   ],
                   'sources': [
                     'angle_end2end_tests.isolate',
@@ skipping 17 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }