Revert "libstagefright handle offloadd for Wav files"

This reverts commit 23fdeab90905561fbf327aa493d76bd057216b6d.

Change-Id: I900bf8a8aa7c7080f30156106e5b33bfe266665b
Merge "Revert "libstagefright handle offloadd for Wav files"" into jaf-1.1