Revert r306508 "[InstCombine] Add test case demonstrating that we don't handle...

Revert r306508 "[InstCombine] Add test case demonstrating that we don't handle icmp eq (trunc (lshr(X, cst1)), cst->icmp (and X, mask), cst when the shift type is larger than 64-bits. NFC"

I accidentally had a extra change in there.

llvm-svn: 306509