Merge "Don't show resize handle if widget cannot be resized." into sc-dev am: 9b8932f579 am: 4f6430e9eb

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

Change-Id: I4240aba1551347b29605af5b021e5ed8868e151c