Removing legacy XMA code from vp8.
Removing legacy XMA code from vp8.

Change-Id: Ib9f7fd3fd56e304e5f587f790c97ac34a3077265

shareefalis/libvpx,ittiamvpx/libvpx-1,ittiamvpx/libvpx,shareefalis/libvpx,liqianggao/libvpx,felipebetancur/libvpx,ittiamvpx/libvpx-1,jdm/libvpx,mbebenita/aom,mbebenita/aom,mwgoldsmith/vpx,ittiamvpx/libvpx,mwgoldsmith/libvpx,thdav/aom,mbebenita/aom,Laknot/libvpx,mbebenita/aom,zofuthan/libvpx,mbebenita/aom,felipebetancur/libvpx,charup/https---github.com-webmproject-libvpx-,Acidburn0zzz/webm.libvpx,n4t/libvpx,kim42083/webm.libvpx,shyamalschandra/libvpx,hsueceumd/test_hui,kim42083/webm.libvpx,n4t/libvpx,reimaginemedia/webm.libvpx,smarter/aom,smarter/aom,Topopiccione/libvpx,thdav/aom,Acidburn0zzz/webm.libvpx,mwgoldsmith/libvpx,Maria1099/webm.libvpx,ittiamvpx/libvpx-1,Maria1099/webm.libvpx,Acidburn0zzz/webm.libvpx,ShiftMediaProject/libvpx,kim42083/webm.libvpx,Laknot/libvpx,webmproject/libvpx,kleopatra999/webm.libvpx,Distrotech/libvpx,Laknot/libvpx,mwgoldsmith/vpx,kim42083/webm.libvpx,liqianggao/libvpx,shyamalschandra/libvpx,ShiftMediaProject/libvpx,jacklicn/webm.libvpx,iniwf/webm.libvpx,webmproject/libvpx,iniwf/webm.libvpx,n4t/libvpx,matanbs/webm.libvpx,WebRTC-Labs/libvpx,pcwalton/libvpx,luctrudeau/aom,jmvalin/aom,Suvarna1488/webm.libvpx,ShiftMediaProject/libvpx,gshORTON/webm.libvpx,jmvalin/aom,zofuthan/libvpx,mwgoldsmith/vpx,gshORTON/webm.libvpx,Distrotech/libvpx,zofuthan/libvpx,hsueceumd/test_hui,ittiamvpx/libvpx-1,Topopiccione/libvpx,VTCSecureLLC/libvpx,matanbs/webm.libvpx,luctrudeau/aom,running770/libvpx,goodleixiao/vpx,jmvalin/aom,Distrotech/libvpx,n4t/libvpx,Maria1099/webm.libvpx,shacklettbp/aom,thdav/aom,matanbs/webm.libvpx,Distrotech/libvpx,mwgoldsmith/vpx,jdm/libvpx,ittiamvpx/libvpx,stewnorriss/libvpx,shacklettbp/aom,GrokImageCompression/aom,luctrudeau/aom,Acidburn0zzz/webm.libvpx,Topopiccione/libvpx,ittiamvpx/libvpx,kim42083/webm.libvpx,reimaginemedia/webm.libvpx,openpeer/libvpx_new,lyx2014/libvpx_c,running770/libvpx,matanbs/webm.libvpx,gshORTON/webm.libvpx,lyx2014/libvpx_c,matanbs/vp982,thdav/aom,charup/https---github.com-webmproject-libvpx-,mwgoldsmith/vpx,stewnorriss/libvpx,shacklettbp/aom,Laknot/libvpx,mwgoldsmith/vpx,shyamalschandra/libvpx,VTCSecureLLC/libvpx,luctrudeau/aom,lyx2014/libvpx_c,kleopatra999/webm.libvpx,Maria1099/webm.libvpx,kalli123/webm.libvpx,luctrudeau/aom,shyamalschandra/libvpx,Topopiccione/libvpx,altogother/webm.libvpx,running770/libvpx,liqianggao/libvpx,pcwalton/libvpx,jmvalin/aom,zofuthan/libvpx,thdav/aom,webmproject/libvpx,jacklicn/webm.libvpx,mwgoldsmith/libvpx,matanbs/vp982,mwgoldsmith/libvpx,Suvarna1488/webm.libvpx,pcwalton/libvpx,smarter/aom,Laknot/libvpx,felipebetancur/libvpx,Suvarna1488/webm.libvpx,webmproject/libvpx,mbebenita/aom,mwgoldsmith/libvpx,shyamalschandra/libvpx,altogother/webm.libvpx,Topopiccione/libvpx,matanbs/webm.libvpx,Suvarna1488/webm.libvpx,stewnorriss/libvpx,mbebenita/aom,openpeer/libvpx_new,jacklicn/webm.libvpx,iniwf/webm.libvpx,VTCSecureLLC/libvpx,liqianggao/libvpx,Topopiccione/libvpx,Suvarna1488/webm.libvpx,altogother/webm.libvpx,felipebetancur/libvpx,GrokImageCompression/aom,felipebetancur/libvpx,iniwf/webm.libvpx,charup/https---github.com-webmproject-libvpx-,webmproject/libvpx,kleopatra999/webm.libvpx,altogother/webm.libvpx,WebRTC-Labs/libvpx,gshORTON/webm.libvpx,WebRTC-Labs/libvpx,smarter/aom,kalli123/webm.libvpx,shareefalis/libvpx,jdm/libvpx,goodleixiao/vpx,Acidburn0zzz/webm.libvpx,jdm/libvpx,jmvalin/aom,Suvarna1488/webm.libvpx,abwiz0086/webm.libvpx,thdav/aom,charup/https---github.com-webmproject-libvpx-,hsueceumd/test_hui,altogother/webm.libvpx,liqianggao/libvpx,goodleixiao/vpx,ittiamvpx/libvpx,jacklicn/webm.libvpx,ittiamvpx/libvpx-1,charup/https---github.com-webmproject-libvpx-,mwgoldsmith/libvpx,GrokImageCompression/aom,reimaginemedia/webm.libvpx,VTCSecureLLC/libvpx,pcwalton/libvpx,shareefalis/libvpx,kim42083/webm.libvpx,luctrudeau/aom,lyx2014/libvpx_c,hsueceumd/test_hui,reimaginemedia/webm.libvpx,matanbs/webm.libvpx,shacklettbp/aom,pcwalton/libvpx,abwiz0086/webm.libvpx,iniwf/webm.libvpx,matanbs/vp982,charup/https---github.com-webmproject-libvpx-,ShiftMediaProject/libvpx,matanbs/vp982,iniwf/webm.libvpx,abwiz0086/webm.libvpx,GrokImageCompression/aom,kleopatra999/webm.libvpx,jdm/libvpx,gshORTON/webm.libvpx,stewnorriss/libvpx,mbebenita/aom,abwiz0086/webm.libvpx,webmproject/libvpx,goodleixiao/vpx,shareefalis/libvpx,stewnorriss/libvpx,kalli123/webm.libvpx,ittiamvpx/libvpx-1,running770/libvpx,abwiz0086/webm.libvpx,jdm/libvpx,GrokImageCompression/aom,WebRTC-Labs/libvpx,lyx2014/libvpx_c,Distrotech/libvpx,matanbs/vp982,running770/libvpx,shacklettbp/aom,matanbs/vp982,openpeer/libvpx_new,kalli123/webm.libvpx,reimaginemedia/webm.libvpx,lyx2014/libvpx_c,Laknot/libvpx,Acidburn0zzz/webm.libvpx,goodleixiao/vpx,reimaginemedia/webm.libvpx,shacklettbp/aom,mbebenita/aom,smarter/aom,Maria1099/webm.libvpx,kleopatra999/webm.libvpx,VTCSecureLLC/libvpx,altogother/webm.libvpx,kalli123/webm.libvpx,smarter/aom,ittiamvpx/libvpx,matanbs/vp982,Maria1099/webm.libvpx,hsueceumd/test_hui,ShiftMediaProject/libvpx,jmvalin/aom,running770/libvpx,GrokImageCompression/aom,abwiz0086/webm.libvpx,kleopatra999/webm.libvpx,stewnorriss/libvpx,shareefalis/libvpx,felipebetancur/libvpx,kalli123/webm.libvpx,openpeer/libvpx_new,zofuthan/libvpx,liqianggao/libvpx,hsueceumd/test_hui,openpeer/libvpx_new,WebRTC-Labs/libvpx,Distrotech/libvpx,pcwalton/libvpx,n4t/libvpx,VTCSecureLLC/libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,shyamalschandra/libvpx,gshORTON/webm.libvpx,zofuthan/libvpx,goodleixiao/vpx,jacklicn/webm.libvpx