[Code cleanup]Remove webui keyboard mojo binding

ui/keyboard/keyboard_util.cc

 // Copyright (c) 2013 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.
 
 #include "ui/keyboard/keyboard_util.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 342 matching lines @@
       {"keyboard/inputview_adapter.js", IDR_KEYBOARD_INPUTVIEW_ADAPTER},
       {"keyboard/inputview.css", IDR_KEYBOARD_INPUTVIEW_CSS},
       {"keyboard/inputview.js", IDR_KEYBOARD_INPUTVIEW_JS},
       {"keyboard/inputview_layouts/101kbd.js", IDR_KEYBOARD_LAYOUTS_101},
       {"keyboard/inputview_layouts/compactkbd-qwerty.js",
        IDR_KEYBOARD_LAYOUTS_COMPACT_QWERTY},
       {"keyboard/inputview_layouts/compactkbd-numberpad.js",
        IDR_KEYBOARD_LAYOUTS_COMPACT_NUMBERPAD},
       {"keyboard/inputview_layouts/emoji.js", IDR_KEYBOARD_LAYOUTS_EMOJI},
       {"keyboard/inputview_layouts/handwriting.js", IDR_KEYBOARD_LAYOUTS_HWT},
-      {"keyboard/keyboard_mojo.js", IDR_KEYBOARD_MOJO_JS},
       {"keyboard/manifest.json", IDR_KEYBOARD_MANIFEST},
       {"keyboard/sounds/keypress-delete.wav",
        IDR_KEYBOARD_SOUNDS_KEYPRESS_DELETE},
       {"keyboard/sounds/keypress-return.wav",
        IDR_KEYBOARD_SOUNDS_KEYPRESS_RETURN},
       {"keyboard/sounds/keypress-spacebar.wav",
        IDR_KEYBOARD_SOUNDS_KEYPRESS_SPACEBAR},
       {"keyboard/sounds/keypress-standard.wav",
        IDR_KEYBOARD_SOUNDS_KEYPRESS_STANDARD},
   };
@@ skipping 11 matching lines @@
 }
 
 void LogKeyboardControlEvent(KeyboardControlEvent event) {
   UMA_HISTOGRAM_ENUMERATION(
       "VirtualKeyboard.KeyboardControlEvent",
       event,
       keyboard::KEYBOARD_CONTROL_MAX);
 }
 
 }  // namespace keyboard