GN Templates: Move common_config to the template.

webrtc/libjingle/xmpp/BUILD.gn

 # Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../../build/webrtc.gni")
 
@@ skipping 56 matching lines @@
     "../xmllite",
   ]
 
   if (rtc_build_expat) {
     deps += [ "//third_party/expat" ]
     public_deps = [
       "//third_party/expat",
     ]
   }
 
-  configs += [
-    "../..:common_config",
-    ":xmpp_warnings_config",
-  ]
+  configs += [ ":xmpp_warnings_config" ]
 
   public_configs = [
     "../..:common_inherited_config",
     ":xmpp_inherited_config",
   ]
 
   if (build_with_chromium) {
     if (is_nacl) {
       deps += [ "//native_client_sdk/src/libraries/nacl_io" ]
     }
@@ skipping 61 matching lines @@
     }
   }
 
   if (is_posix && is_debug) {
     # The Chromium build/common.gypi defines this for all posix
     # _except_ for ios & mac.  We want it there as well, e.g.
     # because ASSERT and friends trigger off of it.
     defines += [ "_DEBUG" ]
   }
 }