Reverting changes from commits 150298 and 150301 since

I was mistakenly under the assumption that dialplan functions
*always* required that a channel be present. I need to go
home earlier, I think :)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@150304 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -1499,10 +1499,7 @@ static int action_getvar(struct mansession *s, const struct message *m)
 
 	if (varname[strlen(varname) - 1] == ')') {
 		char *copy = ast_strdupa(varname);
-		if (!c) {
-			astman_send_error(s, m, "No such channel");
-			return 0;
-		}
+
 		ast_func_read(c, copy, workspace, sizeof(workspace));
 		varval = workspace;
 	} else {