Fix clicks on retina display (#2678)

Source/Urho3D/UI/UI.cpp

@@ -1321,9 +1321,6 @@ void UI::GetCursorPositionAndVisible(IntVector2& pos, bool& visible)
         if (!visible && cursor_)
             pos = cursor_->GetPosition();
     }
-
-    pos.x_ = (int)(pos.x_ / uiScale_);
-    pos.y_ = (int)(pos.y_ / uiScale_);
 }
 
 void UI::SetCursorShape(CursorShape shape)