runtime: remove arbitrary GOARCH constraints in finalizer tests
These tests were only run on GOARCH=amd64, but the rationale given in
CL
11858043 was GC precision on 32-bit platforms. Today, we have far
more 64-bit platforms than just amd64, and I believe that GC precision
on 32-bit platforms has been substantially improved as well.
The GOARCH restriction seems unnecessary.
Updates #57166.
Updates #5368.
Change-Id: I45c608b6fa721012792c96d4ed94a6d772b90210
Reviewed-on: https://go-review.googlesource.com/c/go/+/456120
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Austin Clements <austin@google.com>