Remove unnecessary class parameters from nginx::service

Class `nginx::service` is private, declared once and should reference
variables only from the main class.

manifests/service.pp

@@ -13,43 +13,36 @@
 # Sample Usage:
 #
 # This class file is not called directly
-class nginx::service(
-  $service_restart = $::nginx::service_restart,
-  $service_ensure  = $::nginx::service_ensure,
-  $service_name    = $::nginx::service_name,
-  $service_flags   = $::nginx::service_flags,
-  $service_manage  = $::nginx::service_manage,
-) {
-
+class nginx::service {
   assert_private()
 
-  $service_enable = $service_ensure ? {
+  $service_enable = $::nginx::service_ensure ? {
     'running' => true,
     'absent'  => false,
     'stopped' => false,
     'undef'   => undef,
     default   => true,
   }
 
-  if $service_ensure == 'undef' {
+  if $::nginx::service_ensure == 'undef' {
     $service_ensure_real = undef
   } else {
-    $service_ensure_real = $service_ensure
+    $service_ensure_real = $::nginx::service_ensure
   }
 
-  if $service_manage {
+  if $::nginx::service_manage {
     case $facts['os']['name'] {
       'OpenBSD': {
-        service { $service_name:
+        service { $::nginx::service_name:
           ensure     => $service_ensure_real,
           enable     => $service_enable,
-          flags      => $service_flags,
+          flags      => $::nginx::service_flags,
           hasstatus  => true,
           hasrestart => true,
         }
       }
       default: {
-        service { $service_name:
+        service { $::nginx::service_name:
           ensure     => $service_ensure_real,
           enable     => $service_enable,
           hasstatus  => true,
@@ -60,9 +53,9 @@
   }
 
   # Allow overriding of 'restart' of Service resource; not used by default
-  if $service_restart {
-    Service[$service_name] {
-      restart => $service_restart,
+  if $::nginx::service_restart {
+    Service[$::nginx::service_name] {
+      restart => $::nginx::service_restart,
     }
   }
 }