Merge "Remove drop target button drawable padding if text is hidden" into sc-qpr1-dev am: d3140cdbc0 am: 494bd4e880 am: adb6615fab

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15889355

Change-Id: I5b3b326169b86a73b06849d3912d55796a62dc93