chore: remove unused deframe_data deframing utility

[detail-app]

Remove the standalone deframe_data function from _protocol.py and the
five TestMessageFraming tests that exercised it.

The function had no production callers anywhere in the codebase (the only
references were in these tests, which do not count as production
consumers). It was never wired into production — the streaming
read_messages path inlines its own deframing logic and additionally
handles decompression, making deframe_data a superseded standalone
decoder. It is not exported in any __init__.py, not referenced in
docs/examples, and lives in a private module, so there is no external
consumer risk.

History

• Last materially changed April 2026 (feat: add initial version of s2-sdk #1 @quettabit)

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[greptile-apps]

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[quettabit]

maybe we should move that fn into tests or continue to keep it there but signal that its for tests (based on whatever the convention is). can look into that later. so closing this for now.