Revert r97185 "Update libvpx snapshot to v0.9.7-p1 (Cayuga)."

libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm

Index: libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm
diff --git a/libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm b/libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm
index 000805d4fedb00df0aa750ec327508adcd822b2d..a9060d76fa321b76eb82833c3ceff896a0983a2a 100644
--- a/libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm
+++ b/libvpx/source/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm
@@ -27,11 +27,8 @@
 |vp8_mse16x16_armv6| PROC
 
     push    {r4-r9, lr}
-
-    pld     [r0, r1, lsl #0]
-    pld     [r2, r3, lsl #0]
-
     mov     r12, #16            ; set loop counter to 16 (=block height)
+
     mov     r4, #0              ; initialize sse = 0
 
 loop
@@ -42,10 +39,8 @@ loop
     mov     lr, #0              ; constant zero
 
     usub8   r8, r5, r6          ; calculate difference
-    pld     [r0, r1, lsl #1]
     sel     r7, r8, lr          ; select bytes with positive difference
     usub8   r9, r6, r5          ; calculate difference with reversed operands
-    pld     [r2, r3, lsl #1]
     sel     r8, r9, lr          ; select bytes with negative difference
 
     ; calculate partial sums