fix: remove no longer used docs

docs/source/_autosummary/semantic_router.rst

...tosummary/semantic_router.splitters.base.BaseSplitter.rst

docs/source/_autosummary/semantic_router.splitters.base.rst

...uter.splitters.consecutive_sim.ConsecutiveSimSplitter.rst

...autosummary/semantic_router.splitters.consecutive_sim.rst

...router.splitters.cumulative_sim.CumulativeSimSplitter.rst

..._autosummary/semantic_router.splitters.cumulative_sim.rst

...router.splitters.rolling_window.RollingWindowSplitter.rst

...antic_router.splitters.rolling_window.SplitStatistics.rst

..._autosummary/semantic_router.splitters.rolling_window.rst

docs/source/_autosummary/semantic_router.splitters.rst

docs/source/_autosummary/semantic_router.splitters.utils.rst

...ry/semantic_router.splitters.utils.split_to_sentences.rst

...mmary/semantic_router.splitters.utils.tiktoken_length.rst

...source/_autosummary/semantic_router.text.Conversation.rst

docs/source/_autosummary/semantic_router.text.rst