Cleanup unneeded Jenkins vars.

Now that Zuul and Jenkins use Gearman we don't need to push Jenkins auth
details down into the zuul manifests. Removes these parameters and vars.

Change-Id: I744977f002eb9fb60c3392f0281ab033ffe2bb12

manifests/init.pp

@@ -22,9 +22,6 @@ class zuul (
   $serveradmin = "webmaster@${::fqdn}",
   $gearman_server = '127.0.0.1',
   $internal_gearman = true,
-  $jenkins_server = '',
-  $jenkins_user = '',
-  $jenkins_apikey = '',
   $gerrit_server = '',
   $gerrit_user = '',
   $zuul_ssh_private_key = '',

templates/zuul.conf.erb

@@ -5,11 +5,6 @@ server=<%= gearman_server %>
 start=<%= internal_gearman %>
 log_config=/etc/zuul/gearman-logging.conf
 
-[jenkins]
-server=<%= jenkins_server %>
-user=<%= jenkins_user %>
-apikey=<%= jenkins_apikey %>
-
 [gerrit]
 server=<%= gerrit_server %>
 user=<%= gerrit_user %>