Remove redundant code from vp10_fwd_txfm2d.c
Remove redundant code from vp10_fwd_txfm2d.c

Change-Id: I87ae5e93957616c0f5160a4f679e42f77092c33f

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