Revert 266932 "GN build improvements."

trunk/src/ui/gfx/BUILD.gn

 # Copyright 2014 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("//build/config/ui.gni")
 if (is_android) {
   import("//build/config/android/config.gni")
 }
 
 # Several targets want to include this header file, and some of them are
@@ skipping 438 matching lines @@
     sources = [
       "x/x11_atom_cache.cc",
       "x/x11_atom_cache.h",
       "x/x11_error_tracker.cc",
       "x/x11_error_tracker.h",
       "x/x11_types.cc",
       "x/x11_types.h",
     ]
 
     configs += [ "//build/config/linux:x11" ]
-
-    deps = [
-      ":gfx_export",
-      "//base"
-    ]
   }
 }