Bug 1158424 - Undeprecate HasNoParentWithSameLayersId(). r=kats

--HG--
extra : rebase_source : 5b5b532c559d38bc489c2c12b581cd8c5583d53d
extra : source : 987893534cec83be83727bda591f32c834d9fe72

gfx/layers/apz/src/AsyncPanZoomController.h

@@ -899,8 +899,7 @@ public:
   }
 
   /* Returns true if there is no APZC higher in the tree with the same
-   * layers id. Deprecated. New code shouldn't use this. Old code should be
-   * updated to not use this.
+   * layers id.
    */
   bool HasNoParentWithSameLayersId() const {
     return !mParent || (mParent->mLayersId != mLayersId);