Delete obsolete docs

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✅ You can merge normally! (1 Unrelated Failure)

As of commit 8986c7c with merge base 771588a ():

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / test-llava-runner-linux / linux-job (gh) (matched linux rule in flaky-rules.json)
  The runner has received a shutdown signal. This can happen when the runner service is stopped, or a manually started runner is canceled.

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