Remove unneeded verbose logging for displays.

ui/display/manager/chromeos/display_change_observer.cc

 // Copyright 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/display/manager/chromeos/display_change_observer.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <string>
@@ skipping 275 matching lines @@
 
 void DisplayChangeObserver::OnTouchscreenDeviceConfigurationChanged() {
   // If there are no cached display snapshots, either there are no attached
   // displays or the cached snapshots have been invalidated. For the first case
   // there aren't any touchscreens to associate. For the second case, the
   // displays and touch input-devices will get associated when display
   // configuration finishes.
   const auto& cached_displays = display_configurator_->cached_displays();
   if (!cached_displays.empty())
     OnDisplayModeChanged(cached_displays);
-  else
-    VLOG(1) << "Not updating touchscreen associations";
 }
 
 // static
 float DisplayChangeObserver::FindDeviceScaleFactor(float dpi) {
   for (size_t i = 0; i < arraysize(kThresholdTable); ++i) {
     if (dpi > kThresholdTable[i].dpi)
       return kThresholdTable[i].device_scale_factor;
   }
   return 1.0f;
 }
 
 }  // namespace display