locking: Don't check the output of virGetUserConfigDirectory()

virGetUserConfigDirectory() *never* *ever* returns NULL, making the
checks for it completely unnecessary.
Signed-off-by: NFabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/locking/lock_daemon_config.c

@@ -43,16 +43,12 @@ virLockDaemonConfigFilePath(bool privileged, char **configfile)
     } else {
         g_autofree char *configdir = NULL;
 
-        if (!(configdir = virGetUserConfigDirectory()))
-            goto error;
+        configdir = virGetUserConfigDirectory();
 
         *configfile = g_strdup_printf("%s/virtlockd.conf", configdir);
     }
 
     return 0;
-
- error:
-    return -1;
 }