stop provisioning the hive-chat room in the matrix sweep

hive-c0re/src/job_queue/exec.rs

@@ -412,8 +412,7 @@ fn matrix_sweep_warning(ctx: sweep_health::SweepFailure) -> String {
     );
     format!(
         "matrix user/space sweep failing ({} consecutive, {age}) \
-         — some agents may be missing matrix accounts, space membership, \
-         or chat-room invites",
+         — some agents may be missing matrix accounts or space membership",
         ctx.consecutive
     )
 }