Revert "media: lazy MediaCodec.release()"

Revert submission 10446783-mediacodec-lazy-release

Reason for revert: back-to-back video playback jitters
Reverted Changes:
I119945684:stagefright: MediaCodec::releaseAsync()
Ieb4c0b2e1:media: lazy MediaCodec.release()

Bug: 150662913
Change-Id: I9388f90ab7befe8415afa82b6b349318c5bdc2f8