Eliminate third_party/mojo/src from all targets' include paths

mojo/environment/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.
 
 # GYP version: mojo_base.gyp:mojo_environment_chromium
 source_set("chromium") {
   output_name = "mojo_environment_chromium"
 
   sources = [
     "environment.cc",
@@ skipping 31 matching lines @@
     "default_logger_impl.cc",
     "default_logger_impl.h",
     "default_run_loop_impl.cc",
     "default_run_loop_impl.h",
     "default_task_tracker_impl.cc",
     "default_task_tracker_impl.h",
   ]
 
   defines = [ "MOJO_ENVIRONMENT_IMPL_IMPLEMENTATION" ]
 
-  public_configs =
-      [ "//third_party/mojo/src/mojo/public/build/config:mojo_sdk" ]
-
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//mojo/message_pump",
     "//third_party/mojo/src/mojo/public/c/system:for_component",
     "//third_party/mojo/src/mojo/public/cpp/environment:environment",
   ]
 }