chore: remove stale memo factory mangle entry

Author: JoviDeCroock

mangle.json

@@ -36,7 +36,6 @@
       "$_nextValue": "__N",
       "$_original": "__v",
       "$_args": "__H",
-      "$_factory": "__h",
       "$_depth": "__b",
       "$_mask": "__m",
       "$_detachOnNextRender": "__b",