There is lurky bug in the previous logic I believe:
in rare cases, people saw almost all cleansteps rerun.
Anyway, it's very rare that you need to run cleansteps when you run mm/mmm.
Change-Id: I42e84b3bf01590712ba1b167fe9a500f4ae1ddde
When using mm, which passes in absolute path, while in full build relative
paths are used to encode clean steps.
Change-Id: I3e39ce3125194589f9a464f27eef4a9c96fa06c1
To speed up mm/mmm start time.
At the same time, we should copy over the other clean steps.
Bug: 7186768
Change-Id: I250e64256343afe788d79817af36eafaadb47028
I found these kicking around my system/app with old timestamps, and old
packages just cause trouble. Depending on the build flavor they may or
may not still be there, but it's harmless to clean them.
JP Abgrall