Revert r20246 "ARM64: Add overflow checking support for multiplications by constant powers of 2."

Reason: mjsunit/mul-exhaustive-part4 fails in no snaphot debug.

TBR=alexandre.rames@arm.com

Review URL: https://codereview.chromium.org/211393002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00