Revert "msm8974-common: Add missing audio lib (qcompostproc)"

samsung != oppo

http://review.cyanogenmod.org/#/c/74569/

This reverts commit d6acff18ef7316689b31e29c1357e47cb671da89.

Change-Id: I8a147a5240c5854780f3b5586a5304413fe9bc93