Turn off simple_model_rd_from_var at speed 4.
Turn off simple_model_rd_from_var at speed 4.

This got erroneously changed during the refactor. This fixes
SvcTest.TwoPassEncode2TemporalLayersWithMultipleFrameContextsAndTiles.

Change-Id: Ifa5ab0e098396c5e2d10478db87df256eadfa4c7

mwgoldsmith/libvpx,jmvalin/aom,ShiftMediaProject/libvpx,felipebetancur/libvpx,jmvalin/aom,shacklettbp/aom,liqianggao/libvpx,mbebenita/aom,felipebetancur/libvpx,openpeer/libvpx_new,GrokImageCompression/aom,ittiamvpx/libvpx-1,shyamalschandra/libvpx,luctrudeau/aom,mwgoldsmith/vpx,running770/libvpx,smarter/aom,running770/libvpx,webmproject/libvpx,liqianggao/libvpx,Topopiccione/libvpx,felipebetancur/libvpx,mwgoldsmith/vpx,openpeer/libvpx_new,shacklettbp/aom,VTCSecureLLC/libvpx,running770/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,mbebenita/aom,ittiamvpx/libvpx-1,thdav/aom,GrokImageCompression/aom,felipebetancur/libvpx,liqianggao/libvpx,openpeer/libvpx_new,VTCSecureLLC/libvpx,shacklettbp/aom,GrokImageCompression/aom,running770/libvpx,mbebenita/aom,mwgoldsmith/libvpx,zofuthan/libvpx,mbebenita/aom,smarter/aom,mwgoldsmith/vpx,VTCSecureLLC/libvpx,mwgoldsmith/libvpx,luctrudeau/aom,mwgoldsmith/libvpx,shyamalschandra/libvpx,openpeer/libvpx_new,liqianggao/libvpx,thdav/aom,thdav/aom,shacklettbp/aom,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,mwgoldsmith/vpx,smarter/aom,shyamalschandra/libvpx,webmproject/libvpx,VTCSecureLLC/libvpx,shyamalschandra/libvpx,mwgoldsmith/vpx,mbebenita/aom,mbebenita/aom,smarter/aom,Topopiccione/libvpx,smarter/aom,jmvalin/aom,shyamalschandra/libvpx,VTCSecureLLC/libvpx,luctrudeau/aom,zofuthan/libvpx,zofuthan/libvpx,liqianggao/libvpx,mbebenita/aom,luctrudeau/aom,VTCSecureLLC/libvpx,Topopiccione/libvpx,GrokImageCompression/aom,openpeer/libvpx_new,openpeer/libvpx_new,thdav/aom,GrokImageCompression/aom,jmvalin/aom,ShiftMediaProject/libvpx,smarter/aom,ShiftMediaProject/libvpx,shacklettbp/aom,shyamalschandra/libvpx,Topopiccione/libvpx,webmproject/libvpx,zofuthan/libvpx,Topopiccione/libvpx,jmvalin/aom,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,mwgoldsmith/vpx,mbebenita/aom,running770/libvpx,thdav/aom,webmproject/libvpx,running770/libvpx,Topopiccione/libvpx,zofuthan/libvpx,ShiftMediaProject/libvpx,GrokImageCompression/aom,felipebetancur/libvpx,liqianggao/libvpx,zofuthan/libvpx,ittiamvpx/libvpx-1,luctrudeau/aom,shacklettbp/aom,webmproject/libvpx,felipebetancur/libvpx,luctrudeau/aom,jmvalin/aom,thdav/aom,ittiamvpx/libvpx-1,mbebenita/aom