[WebAssembly] Fix miscompile of select with and

Summary:
Rolls back the remaining bad optimizations introduced in
eb15d001. Some of them were already rolled back in e661f946 and
this finishes the job.

Fixes https://bugs.llvm.org/show_bug.cgi?id=44012.

Reviewers: dschuff, aheejin

Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70347