Revert "libstagefright: Wrapper for FLAC CSIM decoder"

This reverts commit 1b9090ddefd73d2aa239e2ec667322e3e25a5f45.

Change-Id: I2a1552256a0be5946c0f31beafdc76f610c32a07
Merge "Revert "libstagefright: Wrapper for FLAC CSIM decoder"" into kitkat