Remove docs (theres a missing line after Args in builtin proto rules, impossible to update; let's keep docs in places where they should be)

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:ubuntu: Ubuntu 20.04 LTScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1730817485 -o bazelci.py && python3.8 bazelci.py runner --task=ubuntu2004_head --file_config=.bazelci/presubmit.yml
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:mac: macOScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1730817485 -o bazelci.py && python3 bazelci.py runner --task=macos_head --file_config=.bazelci/presubmit.yml
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:mac: macOScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1730817485 -o bazelci.py && python3 bazelci.py runner --task=macos_head --file_config=.bazelci/presubmit.yml
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:windows: Windowscurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1730817485 -o bazelci.py && python.exe bazelci.py runner --task=windows_head --file_config=.bazelci/presubmit.yml
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Total Job Run Time: 12m 50s