Revert of Isolate remaining tests under ui/

ui/message_center/message_center.gyp

Index: ui/message_center/message_center.gyp
diff --git a/ui/message_center/message_center.gyp b/ui/message_center/message_center.gyp
index 541fa092237fb3e226ef9a4df4f9b58ede3fdfda..eb956aa0c6c13479ccf69af8d364559a2620ee1a 100644
--- a/ui/message_center/message_center.gyp
+++ b/ui/message_center/message_center.gyp
@@ -255,30 +255,4 @@
       ],
     },  # target_name: message_center_unittests
   ],
-  'conditions': [
-    ['test_isolation_mode != "noop"', {
-      'targets': [
-        {
-          'target_name': 'message_center_unittests_run',
-          'type': 'none',
-          'dependencies': [
-            'message_center_unittests',
-          ],
-          'includes': [
-            '../../build/isolate.gypi',
-          ],
-          'sources': [
-            'message_center_unittests.isolate',
-          ],
-          'conditions': [
-            ['use_x11 == 1', {
-              'dependencies': [
-                '../../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
-              ],
-            }],
-          ],
-        },
-      ],
-    }],
-  ],
 }