[automerger skipped] Use pruneMapLocked for setMinSchedulerPolicy.
am: 070ec135f3 -s ours
am skip reason: change_id I771fa6bbeac0b9cbba5321881e191605b0e17e23 with SHA1 083a1d3732 is in history

Change-Id: I5ff7a0fea81ca7b049294f35d4466b4fec119a4b