Revert "msm7627a: Enable neon optimized memove and pow functions."

This reverts commit 3fb4bf8d31cc0a87e09488f3c49fe03e5736814c.
Revert "msm8960: Improve performance of memmove, bcopy, and memmove_words"

This reverts commit 80358b3ec5cf53265b0526bbf388c42092e062fd.