jicofo: fix duplicate line

* jicofo: fix duplicate line

jicofo/rootfs/defaults/jicofo.conf

@@ -38,8 +38,6 @@
 {{ $TRUSTED_DOMAINS := splitList "," $TRUSTED_DOMAIN_LIST -}}
 {{ $ENV := .Env }}
 
-{{ $ENV := .Env }}
-
 jicofo {
     {{ if $JICOFO_ENABLE_AUTH }}
     authentication {