roll: pigweed, pw_toolchain: pw_string: Remove <regex>

Nothing in this header seems to be used in this TU. Also <regex>
transitively includes <__locale> which cannot be compiled due to missing
symbols like LC_COLLATE_MASK.

Original-Reviewed-on: https://pigweed-internal-review.git.corp.google.com/c/pigweed/pigweed/+/73908

https://pigweed-internal.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: 1fdd9c08f9e85e1..35e3f50e008db81
Roller-URL: https://ci.chromium.org/b/8740685897232384529
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4f51f7282a083a6e663e50d79b81be085fc3fcc7
Reviewed-on: https://pigweed-internal-review.git.corp.google.com/c/pigweed/showcase/rp2/+/73870
Bot-Commit: Pigweed-Internal-Roller <pigweed-internal-roller@pw-internal-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed-Internal-Roller <pigweed-internal-roller@pw-internal-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: e1f70d6e79a768ab32e4087c1ef80362358f8dee
  1. .github/
  2. .vscode/
  3. apps/
  4. device/
  5. modules/
  6. system/
  7. targets/
  8. tools/
  9. web_app/
  10. .bazelignore
  11. .bazelrc
  12. .bazelversion
  13. .buildifier.json
  14. .clang-format
  15. .clangd.shared
  16. .gitignore
  17. .pw_console.yaml
  18. AUTHORS
  19. BUILD.bazel
  20. CONTRIBUTING.md
  21. LICENSE
  22. MODULE.bazel
  23. OWNERS
  24. pigweed.json
  25. README.md
README.md

Pigweed Open Source Template Repository

This repository is a template that we will use when creating new open source repositories for Pigweed.