Port 75d7d127

Original Commit Message:

    This removes many wasm-specific code paths from codegen, such that
    includes from src/wasm can be removed. After src/wasm is fully excluded
    from no-wasm builds, we can also clean up unused enum values, but for
    now they are still being referenced.

R=clemensb@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I009225a7e76afb31b264f79904253817ca564b57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2736516
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73201}