Remove obsolete scale related APIs for cursor

ui/wm/core/native_cursor_manager.h

Index: ui/wm/core/native_cursor_manager.h
diff --git a/ui/wm/core/native_cursor_manager.h b/ui/wm/core/native_cursor_manager.h
index 68c9d461865bcd0a4f2ebac13c328f3524b8d89e..669772889b855746389ef5e7d1796b8f3a6e26c5 100644
--- a/ui/wm/core/native_cursor_manager.h
+++ b/ui/wm/core/native_cursor_manager.h
@@ -42,12 +42,7 @@ class WM_CORE_EXPORT NativeCursorManager {
     bool visible,
     wm::NativeCursorManagerDelegate* delegate) = 0;
 
-  // A request to set the scale of the cursor icon.
-  virtual void SetScale(
-      float scale,
-      wm::NativeCursorManagerDelegate* delegate) = 0;
-
-  // A request to set the scale of the cursor icon.
+  // A request to set the cursor set.
   virtual void SetCursorSet(
       ui::CursorSetType cursor_set,
       wm::NativeCursorManagerDelegate* delegate) = 0;