Merge "Don't show resize handle if widget cannot be resized." into sc-dev am: 9b8932f579 am: 57a6f10e40

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15114085

Change-Id: I6a30c9db09733383f25a98c50e5ba1f5bb9467dd