This reverts commit f1342a7b.

This breaks 32-bit builds:
 runtime error: load of misaligned address 0xf72fdd48 for type 'const
__m128i' (vector of 2 'long long' values), which requires 16 byte
alignment

+ _mm_set1_epi64x is incompatible with some versions of visual studio

Change-Id: I6f6fc3c11403344cef78d1c432cdc9147e5c1673