Re-add GitHub deny options

This change is _required_ at the top level to protect Gerrit
from a potential thread leak and to prevent it from trying
to replicate to repositories that do not exist on the receiving
side.

Signed-off-by: Linux Foundation Administrators <collab-it+onlab@linuxfoundation.org>
Signed-off-by: Andrew Grimberg <agrimberg@linuxfoundation.org>
diff --git a/project.config b/project.config
index 6096971..2b92bef 100644
--- a/project.config
+++ b/project.config
@@ -15,6 +15,8 @@
 	createProject = group CORD Committers
 	accessDatabase = group user/Brian O'Connor (bocon)
 [access "refs/*"]
+	read = deny group GitHub Replication - Open-Cloud
+	read = deny group GitHub Replication - OpenCord
 	read = group Administrators
 	read = group Anonymous Users
 	read = group Non-Interactive Users