chore(quest): abandon the live-marker app quest

quest/m1/README.md

@@ -30,7 +30,6 @@ transport, benchmark tooling); worktrees isolate commits, not semantics.
 - [Close codes](/quest/m1/close-codes.md) - a client sees the peer's application close code over WebSocket and raw QUIC, like WebTransport
 - [Raw stream codes](/quest/m1/raw-stream-codes.md) - raw QUIC stream resets and stops carry the application's code, not an HTTP/3-mapped one
 - [WebTransport close upstream](/quest/m1/wt-close-upstream.md) - web-transport-moq delivers the close capsule itself, and moq-tokio's `CLOSE_LINGER` is deleted
-- [Live in apps](/quest/m1/announce-live-apps.md) - the demo and `@moq/room` show "no broadcasts" from the `live` marker, which waits for the first session on page load
 - [IETF hidden default](/quest/m1/ietf-hidden-default.md) - a moq-transport peer without the MoQ Hidden option is advertised hidden namespaces; one with it filters per subscription
 - [Watch refusal](/quest/m1/watch-refusal.md) - `<moq-watch>` shows an origin refusal as an error instead of sitting offline
 - [moqsink recoverable errors](/quest/m1/moqsink-keyframe-latch.md) - a leading delta or a timestamp rewind drops frames until a keyframe instead of invalidating a moqsink pad