Remove old skins from menu

lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm

@@ -1971,18 +1971,6 @@ qr/^(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-
                 {
                     'k' => 'bootstrap',
                     'v' => 'Bootstrap'
-                },
-                {
-                    'k' => 'pastel',
-                    'v' => 'Pastel'
-                },
-                {
-                    'k' => 'impact',
-                    'v' => 'Impact'
-                },
-                {
-                    'k' => 'dark',
-                    'v' => 'Dark'
                 }
             ],
             'type' => 'portalskin'

lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm

@@ -381,9 +381,6 @@ sub attributes {
             documentation => 'Name of portal skin',
             select        => [
                 { k => 'bootstrap', v => 'Bootstrap' },
-                { k => 'pastel',    v => 'Pastel' },
-                { k => 'impact',    v => 'Impact' },
-                { k => 'dark',      v => 'Dark' },
             ],
         },
         portalSkinBackground => {