tree a2b73b63508404dd9ebbf5496baaf61287a7ed49
parent cfcb954901e264edb9915e501de64a81732c5edd
author David Benjamin <davidben@google.com> 1695754478 -0400
committer Boringssl LUCI CQ <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com> 1695757888 +0000

Stop rewriting ret to repz ret on x86_64

This is an old workaround from the AMD K8 days. GCC stopped doing it for
their generic output in 2017.
https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=4ca47ced33cc0d6f9e336930d628a6fdbf22f6e2

b/65150507#comment2 says LLVM has never done it.

We can retire this now and recover a small handful of bytes.

Change-Id: I37ef47038b6b3a1a7500bcea8cbd1beefc83121c
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/63205
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Bob Beck <bbe@google.com>