Remove experimental notices from worker tuner APIs #1048

Job	Run time
build-lint-test (ubuntu-arm)	8m 41s
build-lint-test (ubuntu-latest)	8m 2s
features-tests / test	5m 22s
build-lint-test (macos-arm)	10m 31s
build-lint-test (windows-latest)	16m 41s
build-lint-test (macos-intel)	18m 13s
build-lint-test (ubuntu-arm)	10m 3s
build-lint-test (macos-arm)	8m 5s
features-tests / test	5m 22s
build-lint-test (windows-latest)	16m 41s
build-lint-test (ubuntu-latest)	8m 2s
build-lint-test (macos-intel)	18m 13s
	2h 13m 56s

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