Do not log an ERROR if autoservice_stop() returns -1.

This does not indicate an error.  A return of -1 just means that the channel
has been hung up.

(reported in #asterisk-dev)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@208592 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c

@@ -1674,7 +1674,6 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 			}
 
 			if (ast_autoservice_stop(chan) < 0) {
-				ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
 				res = -1;
 			}