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

[automerger skipped] Revert "Revert "[pm] remove old stage dirs on low storage"" am: bd25f706 -s ours am: 40ef8ac0 -s ours am: db7163c1 -s ours am: 3de41d66 -s ours am: e72229a3 -s ours am: 0e12d843 -s ours am: 991a6678 -s ours am: 0e280312 -s ours am: b09f3459 -s ours

am skip reason: skipped by user schfan

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16058207

Change-Id: I4b4a9ca1382407cc6197e3062799d7ea897b2f48