Remove GYP annotations from chrome, ui, tools GN files.

ui/android/BUILD.gn

 # Copyright 2015 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/android/rules.gni")
 import("//testing/test.gni")
 
 assert(is_android)
 
 component("android") {
@@ skipping 212 matching lines @@
     "javatests/src/org/chromium/ui/resources/sprites/CrushedSpriteResourceTest.java",
   ]
   testonly = true
   deps = [
     ":ui_java",
     "//base:base_java",
     "//base:base_java_test_support",
   ]
 }
 
-# GYP: //ui/android/ui_android.gyp:ui_junit_tests
 junit_binary("ui_junit_tests") {
   java_files = [
     "junit/src/org/chromium/ui/picker/DateDialogNormalizerTest.java",
     "junit/src/org/chromium/ui/text/SpanApplierTest.java",
   ]
   deps = [
     "//base:base_java",
     "//ui/android:ui_java",
   ]
 }
@@ skipping 13 matching lines @@
     "//cc",
     "//cc:test_support",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/base",
     "//ui/gfx",
     "//ui/resources:ui_test_pak",
   ]
 }