[automerger skipped] Revert "Revert "[pm] remove old stage dirs on low storage"" am: bd25f70623 -s ours am: 40ef8ac08d -s ours am: db7163c1e2 -s ours am: 3de41d665a -s ours am: 42903556b4 -s ours am: edf58bcbe8 -s ours am: 83756d4239 -s ours am: a9a0af5c8c -s ours

am skip reason: skipped by user schfan

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

Change-Id: Ic38db78e936bdfd63ab3b670f45ca6086862b2cc