Remove unneeded verbose logging for displays.

ui/display/manager/chromeos/touchscreen_util.cc

Index: ui/display/manager/chromeos/touchscreen_util.cc
diff --git a/ui/display/manager/chromeos/touchscreen_util.cc b/ui/display/manager/chromeos/touchscreen_util.cc
index 31dbf2f6bac225ebdec34a30c4049f8119f713a1..aaa099633aa9c2e7b0e90694e0a074557e0ce819 100644
--- a/ui/display/manager/chromeos/touchscreen_util.cc
+++ b/ui/display/manager/chromeos/touchscreen_util.cc
@@ -276,7 +276,7 @@ void AssociateTouchscreens(
   AssociateToSingleDisplay(&displays, &devices);
 
   for (const ManagedDisplayInfo* display : displays)
-    LOG(WARNING) << "Unmatched display " << display->name();
+    VLOG(2) << "Unmatched display " << display->name();
   for (const ui::TouchscreenDevice* device : devices)
     LOG(WARNING) << "Unmatched device " << device->name;
 }