diff --git a/roles/openshift-apps/messaging-bridges/templates/configmap.yml b/roles/openshift-apps/messaging-bridges/templates/configmap.yml
index 6c8f3c1c16..ee90eab3af 100644
--- a/roles/openshift-apps/messaging-bridges/templates/configmap.yml
+++ b/roles/openshift-apps/messaging-bridges/templates/configmap.yml
@@ -259,11 +259,6 @@ data:
         "ca_cert_location": "https://fedoraproject.org/fedmsg/ca.crt",
         "ca_cert_cache": "/tmp/fedmsg/ca.crt",
         "ca_cert_cache_expiry": 0,  # Never expires
-        "certnames": {
-            # In prod/stg, map hostname to the name of the cert in ssldir.
-            # Unfortunately, we can't use socket.getfqdn()
-            # "app01.stg": "app01.stg.phx2.fedoraproject.org",
-        },
         # A mapping of fully qualified topics to a list of cert names for which
         # a valid signature is to be considered authorized.  Messages on topics not
         # listed here are considered automatically authorized.