loadbalancer: fix dependency on haproxy service

The dependency to the HAproxy service is wrong since it's absent in the
catalog. Let's remove it.

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>

manifests/loadbalancer.pp

@@ -238,8 +238,7 @@ class cloud::loadbalancer(
   # Still allow HAproxy to start
   if ($::osfamily == 'Debian') {
     file { '/etc/default/haproxy':
-      content => 'ENABLED=1',
-      before  => Service['haproxy'],
+      content => 'ENABLED=1'
     }
   }