ari_websockets: removed extra check on websocket session read

When merging the websocket timeout issue (ASTERISK-24701) an extra, almost
duplicate, check was left in the code that should not have been. This removes
it.

ASTERISK-24701 #close
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/4412/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@431693 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/ari/ari_websockets.c

@@ -104,12 +104,6 @@ struct ast_json *ast_ari_websocket_session_read(
 		return NULL;
 	}
 
-
-	if (ast_websocket_fd(session->ws_session) <= 0) {
-		return NULL;
-	}
-
-
 	while (!message) {
 		int res;
 		char *payload;