Revert "[SLP]Fix final analysis for unsigned nodes."

This reverts commit 74e07ab523122d6a8347b25770062ab331b6bb84.

It might be that Mask.getBitWidth() == Mask.countl_zero() (32 in my
case) and zero bitwidth2 causes the crash.

GitOrigin-RevId: 054b1b3b5ac67385220654df12732346b51c8a41
2 files changed