title: Invisible attributes in tree view odoo
body: <p>I'm trying to hide some fields in my treeViews but it isn't working.
  This my code :</p>
  
  <pre><code>&lt;record id="partner_views_tree" model="ir.ui.view"&gt; 
          &lt;field name="name"&gt;partner.views.tree&lt;/field&gt;
          &lt;field name="type"&gt;tree&lt;/field&gt;
          &lt;field name="model"&gt;res.partner&lt;/field&gt;
          &lt;field name="inherit_id" ref="base.view_partner_tree"/&gt;
          &lt;field name="arch" type="xml"&gt;
  
              &lt;tree&gt;
               &lt;field name="phone" invisible="1"/&gt;
                  &lt;field name="email" invisible="1"/&gt;
                  &lt;field name="matricule"/&gt;
                  &lt;field name="tel"/&gt;
                  &lt;field name="email_no"/&gt;
                  &lt;field name="annee_prestation"/&gt;
  
              &lt;/tree&gt;
          &lt;/field&gt;
      &lt;/record&gt;
  </code></pre>
  
  <p>I don't know how to hide fields, is there a way to do this? If so, how?</p>