Remove 8-bit array in HBD
Remove 8-bit array in HBD

Creating both 8- and 16-bit arrays and then only using one
of them is wasteful.

Change-Id: Ic5b397c283efaff7bcfff2d2413838ba3e065561

mbebenita/aom,kleopatra999/webm.libvpx,kalli123/webm.libvpx,liqianggao/libvpx,running770/libvpx,Topopiccione/libvpx,mwgoldsmith/libvpx,jmvalin/aom,mwgoldsmith/vpx,mwgoldsmith/libvpx,gshORTON/webm.libvpx,smarter/aom,running770/libvpx,luctrudeau/aom,mbebenita/aom,Suvarna1488/webm.libvpx,abwiz0086/webm.libvpx,Maria1099/webm.libvpx,stewnorriss/libvpx,jmvalin/aom,lyx2014/libvpx_c,jacklicn/webm.libvpx,goodleixiao/vpx,liqianggao/libvpx,webmproject/libvpx,mwgoldsmith/vpx,mbebenita/aom,liqianggao/libvpx,gshORTON/webm.libvpx,GrokImageCompression/aom,smarter/aom,VTCSecureLLC/libvpx,altogother/webm.libvpx,goodleixiao/vpx,shyamalschandra/libvpx,kalli123/webm.libvpx,running770/libvpx,ittiamvpx/libvpx-1,shyamalschandra/libvpx,gshORTON/webm.libvpx,lyx2014/libvpx_c,abwiz0086/webm.libvpx,felipebetancur/libvpx,ittiamvpx/libvpx-1,Maria1099/webm.libvpx,Topopiccione/libvpx,running770/libvpx,zofuthan/libvpx,felipebetancur/libvpx,goodleixiao/vpx,iniwf/webm.libvpx,luctrudeau/aom,Topopiccione/libvpx,jacklicn/webm.libvpx,Acidburn0zzz/webm.libvpx,webmproject/libvpx,altogother/webm.libvpx,abwiz0086/webm.libvpx,shyamalschandra/libvpx,openpeer/libvpx_new,goodleixiao/vpx,kalli123/webm.libvpx,ShiftMediaProject/libvpx,VTCSecureLLC/libvpx,kalli123/webm.libvpx,jacklicn/webm.libvpx,ShiftMediaProject/libvpx,kleopatra999/webm.libvpx,Maria1099/webm.libvpx,VTCSecureLLC/libvpx,thdav/aom,jmvalin/aom,kim42083/webm.libvpx,felipebetancur/libvpx,shacklettbp/aom,stewnorriss/libvpx,ittiamvpx/libvpx-1,thdav/aom,shacklettbp/aom,mwgoldsmith/vpx,GrokImageCompression/aom,GrokImageCompression/aom,iniwf/webm.libvpx,liqianggao/libvpx,mwgoldsmith/libvpx,shacklettbp/aom,GrokImageCompression/aom,reimaginemedia/webm.libvpx,smarter/aom,liqianggao/libvpx,stewnorriss/libvpx,altogother/webm.libvpx,openpeer/libvpx_new,Acidburn0zzz/webm.libvpx,kim42083/webm.libvpx,shyamalschandra/libvpx,shacklettbp/aom,Maria1099/webm.libvpx,VTCSecureLLC/libvpx,thdav/aom,iniwf/webm.libvpx,gshORTON/webm.libvpx,openpeer/libvpx_new,mbebenita/aom,shacklettbp/aom,ShiftMediaProject/libvpx,mwgoldsmith/libvpx,thdav/aom,smarter/aom,kalli123/webm.libvpx,luctrudeau/aom,webmproject/libvpx,mwgoldsmith/vpx,altogother/webm.libvpx,felipebetancur/libvpx,Topopiccione/libvpx,reimaginemedia/webm.libvpx,reimaginemedia/webm.libvpx,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,abwiz0086/webm.libvpx,felipebetancur/libvpx,reimaginemedia/webm.libvpx,openpeer/libvpx_new,kim42083/webm.libvpx,abwiz0086/webm.libvpx,luctrudeau/aom,lyx2014/libvpx_c,VTCSecureLLC/libvpx,zofuthan/libvpx,stewnorriss/libvpx,reimaginemedia/webm.libvpx,Acidburn0zzz/webm.libvpx,felipebetancur/libvpx,kleopatra999/webm.libvpx,mbebenita/aom,goodleixiao/vpx,zofuthan/libvpx,jmvalin/aom,stewnorriss/libvpx,luctrudeau/aom,webmproject/libvpx,stewnorriss/libvpx,ShiftMediaProject/libvpx,shyamalschandra/libvpx,thdav/aom,kleopatra999/webm.libvpx,kleopatra999/webm.libvpx,Topopiccione/libvpx,lyx2014/libvpx_c,smarter/aom,mwgoldsmith/vpx,shyamalschandra/libvpx,mbebenita/aom,kalli123/webm.libvpx,zofuthan/libvpx,webmproject/libvpx,Suvarna1488/webm.libvpx,mwgoldsmith/libvpx,Maria1099/webm.libvpx,zofuthan/libvpx,Topopiccione/libvpx,Suvarna1488/webm.libvpx,gshORTON/webm.libvpx,iniwf/webm.libvpx,altogother/webm.libvpx,iniwf/webm.libvpx,Suvarna1488/webm.libvpx,kim42083/webm.libvpx,Suvarna1488/webm.libvpx,goodleixiao/vpx,kim42083/webm.libvpx,Acidburn0zzz/webm.libvpx,ittiamvpx/libvpx-1,jacklicn/webm.libvpx,altogother/webm.libvpx,Maria1099/webm.libvpx,openpeer/libvpx_new,reimaginemedia/webm.libvpx,running770/libvpx,ShiftMediaProject/libvpx,lyx2014/libvpx_c,zofuthan/libvpx,mbebenita/aom,jmvalin/aom,mbebenita/aom,kim42083/webm.libvpx,VTCSecureLLC/libvpx,lyx2014/libvpx_c,thdav/aom,kleopatra999/webm.libvpx,jacklicn/webm.libvpx,Suvarna1488/webm.libvpx,mbebenita/aom,webmproject/libvpx,GrokImageCompression/aom,jmvalin/aom,iniwf/webm.libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,liqianggao/libvpx,Acidburn0zzz/webm.libvpx,running770/libvpx,GrokImageCompression/aom,shacklettbp/aom,abwiz0086/webm.libvpx,ittiamvpx/libvpx-1,mwgoldsmith/vpx,Acidburn0zzz/webm.libvpx,gshORTON/webm.libvpx,luctrudeau/aom,smarter/aom