Hide farm tab if user is not Farm Admin

user.xml

@@ -5,7 +5,6 @@
     <data>
         <record model="ir.ui.view" id="res_user_form_view">
             <field name="model">res.user</field>
-            <field name="type">form</field>
             <field name="inherit" ref="res.user_view_form"/>
             <field name="name">res_user_form</field>
         </record>

view/res_user_form.xml

@@ -3,8 +3,7 @@
      copyright notices and license terms. -->
 <data>
     <xpath expr="//notebook" position="inside">
-        <!-- TODO: only show the tab if you are farm admin -->
-        <page id="farm" string="Farm">
+        <page name="farms">
             <field name="farms" colspan="4"/>
         </page>
     </xpath>