roll: pigweed, pw_toolchain: pw_kvs: Remove unnecessary Key alias and test

pw_kvs originally used std::string_view for keys. A downstream project
wanted to use pw_kvs in C++14, so implemented pw::kvs::Key, a custom
version of std::string_view in e64daf43. That team later migrated to a
newer C++ standard, and Pigweed dropped C++14 support, so the Key
implementation was converted to an alias.

The Key alias is unused outside pw_kvs, so remove it. Also remove code
that hints at C++14 support, since it is not supported in Pigweed.

This is potentially a BREAKING CHANGE! References to pw::kvs::Key must
be replaced with std::string_view.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/229976

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: 5e9e39285969463..9b242113ab06e86
Roller-URL: https://ci.chromium.org/b/8739431030426514801
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I031aad199d18c8bab5b35bfbfdcde79e188f790f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/showcase/sense/+/230142
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: 2d0848ac90e90457039252d46baa8dd80f71be66
  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

Sense

git clone https://pigweed.googlesource.com/pigweed/showcase/sense

Welcome to Pigweed Sense, a tour of key Pigweed components experienced through an imagined air quality product.

Please visit Sense: An interactive tour through Pigweed to get started.