[automerger skipped] Merge "Revert "Revert "[pm] remove old stage dirs on low...

[automerger skipped] Merge "Revert "Revert "[pm] remove old stage dirs on low storage""" into sc-qpr1-dev am: cd4e3b6b am: a7f4de6b -s ours am: 2e6727a8 -s ours

am skip reason: Merged-In I91170ba399b3a596320b3bd9c8188912e5c4f1be with SHA-1 a0bc44d0 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15960214

Change-Id: I62d039be9a8152bd921ad25f79584b7637ac3f44