[Android] Short-circuit touch forwarding when no touch handlers exist

content/browser/renderer_host/input/web_input_event_builders_android.cc

Index: content/browser/renderer_host/input/web_input_event_builders_android.cc
diff --git a/content/browser/renderer_host/input/web_input_event_builders_android.cc b/content/browser/renderer_host/input/web_input_event_builders_android.cc
index a2ed46fcd38a2210b14dfa017f9cb4b35c4e9062..a76df161e37c55f26c9e6b0b83830d30bb18b61f 100644
--- a/content/browser/renderer_host/input/web_input_event_builders_android.cc
+++ b/content/browser/renderer_host/input/web_input_event_builders_android.cc
@@ -133,10 +133,4 @@ WebGestureEvent WebGestureEventBuilder::Build(WebInputEvent::Type type,
   return result;
 }
 
-blink::WebTouchEvent WebTouchEventBuilder::Build(
-    const MotionEventAndroid& event,
-    float scale) {
-  return CreateWebTouchEventFromMotionEvent(event, scale);
-}
-
 }  // namespace content