Revert "Use libvpx's obj_int_extract and unpack_lib_posix to generate offset header file."

This reverts commit 7686f0ddda717a9e776be0e219f039f68a10f9ed.

BUG=

TBR=andrew@webrtc.org, fischman@webrtc.org,

Review URL: https://webrtc-codereview.appspot.com/8369004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5520 4adac7df-926f-26a2-2b94-8c16560cd09d
7 files changed