Revert "msm: vidc: Add the support for MPEG-2 extension and user data"

This reverts commit da25dde5d24014f4a38deb4f89198fe161ad78e9.
Revert "Add optimized version of memcpy for Cortex A9"

This reverts commit 460a55f7960894712ae244f7e552069a17036b59.

Conflicts:
	libc/Android.mk