remove the leftover of simp_mv_pred in the configure file
remove the leftover of simp_mv_pred in the configure file

Change-Id: I21013412174a2edefdc5e30ece0e8e857b99ac5e

luctrudeau/aom,mbebenita/aom,mbebenita/aom,luctrudeau/aom,GrokImageCompression/aom,mbebenita/aom,luctrudeau/aom,mbebenita/aom,mbebenita/aom,smarter/aom,mbebenita/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,mbebenita/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,smarter/aom,mbebenita/aom,smarter/aom,luctrudeau/aom,luctrudeau/aom