runtime: remove unused badsignal2 on windows

This CL removes badsignal2 function, as it is unused on Windows.

badsignal2 was originally intended to abort the process when
an exception was raised on a non-Go thread, following the same approach
as Linux and others.

Since it was added, back on https://golang.org/cl/5797068, it has caused
several issues on Windows, see #8224 and #50877. That's because we can't
know wether the signal is bad or not, as our trap might not be at the
end of the exception handler chain.

To fix those issues, https://golang.org/cl/104200046 and CL 442896
stopped calling badsignal2, and CL 458135 removed one last incorrect
call on amd64 and 386.

Change-Id: I5bd31ee2672118ae0f1a2c8b46a1bb0f4893a011
Reviewed-on: https://go-review.googlesource.com/c/go/+/463116
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
6 files changed
tree: a14b2e6edcbbdd789633f924f4d0af222c183e23
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
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