Cleanup: Remove unused ui::ResourceBundle::ImageRTL

ui/base/resource/resource_bundle.cc

Index: ui/base/resource/resource_bundle.cc
diff --git a/ui/base/resource/resource_bundle.cc b/ui/base/resource/resource_bundle.cc
index a2aa5824a19ead6a593c0d9865b7240eb83b4833..d8742fcba9bd85edf412843b831deaed4b35d7cb 100644
--- a/ui/base/resource/resource_bundle.cc
+++ b/ui/base/resource/resource_bundle.cc
@@ -428,10 +428,6 @@ gfx::Image& ResourceBundle::GetImageNamed(int resource_id) {
   return images_[resource_id];
 }
 
-gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id) {
-  return GetNativeImageNamed(resource_id, RTL_DISABLED);
-}
-
 base::RefCountedStaticMemory* ResourceBundle::LoadDataResourceBytes(
     int resource_id) const {
   return LoadDataResourceBytesForScale(resource_id, ui::SCALE_FACTOR_NONE);