Fix dependency issue between core and external optional services
diff --git a/xos/xos_config b/xos/xos_config
index c47fac6..b86d618 100644
--- a/xos/xos_config
+++ b/xos/xos_config
@@ -37,7 +37,6 @@
 images_directory=/opt/xos/images
 dependency_graph=/opt/xos/model-deps
 logfile=/var/log/xos_backend.log
-applist=helloworld
 
 [gui]
 disable_minidashboard=True