[release-branch.go1.23] runtime: don't frob isSending for tickers

The Ticker Stop and Reset methods don't report a value,
so we don't need to track whether they are interrupting a send.

This includes a test that used to fail about 2% of the time on
my laptop when run under x/tools/cmd/stress.

For #69880
Fixes #69882

Change-Id: Ic6d14b344594149dd3c24b37bbe4e42e83f9a9ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/620136
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>
Auto-Submit: Michael Knyszek <[email protected]>
Auto-Submit: Ian Lance Taylor <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
(cherry picked from commit 48849e0866f64a40d04a9151e44e5a73acdfc17b)
Reviewed-on: https://go-review.googlesource.com/c/go/+/620137
Reviewed-by: Dmitri Shuralyov <[email protected]>
2 files changed
tree: e03ca6331b7da8b1184dcdf95c49d8766c9af147
  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
  17. VERSION
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