Remove obsolete comment.

robertmhaas · robertmhaas · commit e397d2ee6474 · 2011-03-10T15:00:20.000-05:00
In earlier versions of the sync rep patch, waiters removed themselves from
the queue, but now walsender removes them before doing the wakeup.

Report by Fujii Masao.
diff --git a/src/include/replication/walsender.h b/src/include/replication/walsender.h
@@ -74,8 +74,7 @@ typedef struct
 
 	/*
 	 * Current location of the head of the queue. All waiters should have
-	 * a waitLSN that follows this value, or they are currently being woken
-	 * to remove themselves from the queue. Protected by SyncRepLock.
+	 * a waitLSN that follows this value. Protected by SyncRepLock.
 	 */
 	XLogRecPtr	lsn;
 
