Revert LteralString support from vendored typeshed copy #13091
Description
We don't properly support LteralString anyway, so its use in typeshed causes some false positives. We need to locally revert python/typeshed#7725 for now.
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We don't properly support LteralString anyway, so its use in typeshed causes some false positives. We need to locally revert python/typeshed#7725 for now.