Back out changes to the Impeller dispatcher stub that depend on WIP interface changes. (#3)

Author: chinmaygarde

impeller/display_list/display_list_dispatcher.cc

@@ -212,11 +212,6 @@ void DisplayListDispatcher::transformFullPerspective(SkScalar mxx,
   canvas_.Transform(xformation);
 }
 
-// |flutter::Dispatcher|
-void DisplayListDispatcher::transformReset() {
-  canvas_.ResetTransform();
-}
-
 static Rect ToRect(const SkRect& rect) {
   return Rect::MakeLTRB(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
 }

impeller/display_list/display_list_dispatcher.h

@@ -118,9 +118,6 @@ class DisplayListDispatcher final : public flutter::Dispatcher {
                                 SkScalar mwz,
                                 SkScalar mwt) override;
 
-  // |flutter::Dispatcher|
-  void transformReset() override;
-
   // |flutter::Dispatcher|
   void clipRect(const SkRect& rect, SkClipOp clip_op, bool is_aa) override;