Revert "MMX in intra 4x4 prediction replaced with SSE2"

This reverts commit 89a1efa4c436c58c101c8b3de866e3014be7d77a.

This causes a segfault when decoding vp8, in both 32 and 64-bit

Change-Id: Idbb9bb28ab897e1d055340497c47b49a12231367
3 files changed