rdopt: remove dead stores
rdopt: remove dead stores

Change-Id: Ia8a20c6751cc6d63c60bb00b99c78faca1e61051

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