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.
