LoginView.js - remove realm selector

Because it is not really required. Instead, we always use realm 'pmg'
to login toö the admin interface. The backend can map 'root@pmg' to
'root@pam'.

js/LoginView.js

@@ -1,27 +1,3 @@
-/*global Proxmox*/
-Ext.define('PMG.form.RealmComboBox', {
-    extend: 'Proxmox.form.KVComboBox',
-    xtype: 'pmgRealmComboBox',
-
-    getState: function() {
-	return { value: this.getValue() };
-    },
-    applyState : function(state) {
-	if (state && state.value) {
-	    this.setValue(state.value);
-	}
-    },
-    stateEvents: [ 'select' ],
-    stateful: true, // last chosen auth realm is saved between page reloads
-    id: 'pmgloginrealm', // We need stable ids when using stateful, not autogenerated
-    stateID: 'pmgloginrealm',
-
-    comboItems: [
-	['pam', 'Local System (PAM)'],
-	['pmg', 'Proxmox Mail Gateway']
-    ]
-});
-
 Ext.define('PMG.LoginView', {
     extend: 'Ext.container.Container',
     xtype: 'loginview',
@@ -35,15 +11,14 @@ Ext.define('PMG.LoginView', {
 
 	    var realmfield = me.lookup('realmfield');
 
-	    if (view.targetview === 'quarantineview') {
-		realmfield.setDisabled(true);
-		realmfield.setVisible(false);
-	    }
+	    if (view.targetview !== 'quarantineview') return;
 
-	    var loginForm = this.lookupReference('loginForm');
+	    realmfield.setValue('quarantine');
 
 	    // try autologin with quarantine ticket from URL
 
+	    var loginForm = this.lookupReference('loginForm');
+
 	    var qs = Ext.Object.fromQueryString(location.search);
 	    if (qs.ticket == undefined) { return; }
 	    var ticket = decodeURIComponent(qs.ticket);
@@ -179,20 +154,19 @@ Ext.define('PMG.LoginView', {
 			    name: 'password',
 			    reference: 'passwordField'
 			},
-			{
-			    xtype: 'pmgRealmComboBox',
-			    fieldLabel: gettext('Realm'),
-			    reference: 'realmfield',
-			    name: 'realm',
-			    value: 'pam'
-			},
 			{
 			    xtype: 'proxmoxLanguageSelector',
 			    fieldLabel: gettext('Language'),
 			    value: Ext.util.Cookies.get('PMGLangCookie') || 'en',
 			    name: 'lang',
 			    submitValue: false
-			}
+			},
+			{
+			    xtype: 'hiddenfield',
+			    reference: 'realmfield',
+			    name: 'realm',
+			    value: 'pmg'
+                        }
 		    ],
 		    buttons: [
 			{