proposed-aom : remove vp8, vp9 from directory configure and vpx

configure

vp8/common/alloccommon.c

vp8/common/alloccommon.h

vp8/common/arm/armv6/bilinearfilter_v6.asm

vp8/common/arm/armv6/copymem16x16_v6.asm

vp8/common/arm/armv6/copymem8x4_v6.asm

vp8/common/arm/armv6/copymem8x8_v6.asm

vp8/common/arm/armv6/dc_only_idct_add_v6.asm

vp8/common/arm/armv6/dequant_idct_v6.asm

vp8/common/arm/armv6/dequantize_v6.asm

vp8/common/arm/armv6/filter_v6.asm

vp8/common/arm/armv6/idct_blk_v6.c

vp8/common/arm/armv6/idct_v6.asm

vp8/common/arm/armv6/iwalsh_v6.asm

vp8/common/arm/armv6/loopfilter_v6.asm

vp8/common/arm/armv6/simpleloopfilter_v6.asm

vp8/common/arm/armv6/sixtappredict8x4_v6.asm

vp8/common/arm/bilinearfilter_arm.c

vp8/common/arm/bilinearfilter_arm.h

vp8/common/arm/dequantize_arm.c