Revert of Listen for key events in SetupXI2ForXWindow()

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc

 // Copyright (c) 2012 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/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
 #include <X11/extensions/shape.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xregion.h>
@@ skipping 1745 matching lines @@
           DispatchMouseEvent(&mouseev);
           break;
         }
         case ui::ET_SCROLL_FLING_START:
         case ui::ET_SCROLL_FLING_CANCEL:
         case ui::ET_SCROLL: {
           ui::ScrollEvent scrollev(xev);
           SendEventToProcessor(&scrollev);
           break;
         }
-        case ui::ET_KEY_PRESSED:
-        case ui::ET_KEY_RELEASED: {
-          ui::KeyEvent key_event(xev);
-          SendEventToProcessor(&key_event);
-          break;
-        }
         case ui::ET_UNKNOWN:
           break;
         default:
           NOTREACHED();
       }
 
       // If we coalesced an event we need to free its cookie.
       if (num_coalesced > 0)
         XFreeEventData(xev->xgeneric.display, &last_event.xcookie);
       break;
@@ skipping 118 matching lines @@
   if (linux_ui) {
     ui::NativeTheme* native_theme = linux_ui->GetNativeTheme(window);
     if (native_theme)
       return native_theme;
   }
 
   return ui::NativeTheme::instance();
 }
 
 }  // namespace views