CHA-RL5: add removal notice

textile/chat-features.textile

@@ -132,6 +132,9 @@ h4(#rooms-lifecycle-operations). Room Lifecycle Operations
 ** @(CHA-RL5d)@ Once all channels (except the channel that entered @SUSPENDED@, per @CHA-RL5a@) have been detached, the room waits until the original channel that caused the retry loop naturally enters the @ATTACHED@ state. This is handled by the underlying Realtime SDK.
 ** @(CHA-RL5e)@ @[Testable]@ If, during the @CHA-RL5d wait, the channel state becomes @FAILED@, then the room status is transitioned to @FAILED@ and the retry loop stops. The error associated with the transition is the error from the Realtime @ChannelStateChange@.
 ** @(CHA-RL5f)@ @[Testable]@ If, during the @CHA-RL5d wait, the channel state becomes @ATTACHED@, then the room status is transitioned to @ATTACHING@ to begin a new @CHA-RL1e@ attachment cycle. On successful completion, or terminal condition (room status is @FAILED@) the @RETRY@ loop terminates.
+*** @(CHA-RL5f1)@ This specification point has been removed. Refer to the @CHA-RL1e@ attachment cycle.
+*** @(CHA-RL5f2)@ This specification point has been removed. Refer to the @CHA-RL1e@ attachment cycle.
+*** @(CHA-RL5f3)@ This specification point has been removed. Refer to the @CHA-RL1e@ attachment cycle.
 * @(CHA-RL6)@ @[Testable]@ A room begins its lifetime in the @INTIIALIZING@ state.
 * @(CHA-RL6a)@ @[Testable]@ It enters @INITIALIZED@ when any @RELEASE@ operations for a previous instance of a room are completed.
 * @(CHA-RL7)@ Room lifecycle operations are atomic and exclusive operations: one operation must complete (whether that's failure or success) before the next one may begin.