removed an unused attribute

templates/silent-install.conf.j2

diff --git a/templates/silent-install.conf.j2 b/templates/silent-install.conf.j2
index bee8925..e31f37d 100644
--- a/templates/silent-install.conf.j2
+++ b/templates/silent-install.conf.j2
@@ -19,8 +19,6 @@
 APIGEE_LDAPPW={{ opdk_ldap_pass }}
 
 ENABLE_AX={{ opdk_enable_ax }}
-# AXGroup
-AXGROUP={{ ax_group }}
 MP_POD={{ opdk_mp_pod }}
 
 {% if groups['dc-1'] is defined and inventory_hostname in groups['dc-1'] %}