templates: remove dead code from edit_user.html

Remove the <script> block as the function digestUserFormPassword no
longer exists.

ogcp/templates/auth/edit_user.html

@@ -15,12 +15,4 @@
                   button_map={'submit_btn':'primary'},
                   id='user-form') }}
 
-<script>
-    document.addEventListener('readystatechange', () => {
-        if (document.readyState === 'complete') {
-            digestUserFormPassword()
-        }
-    });
-</script>
-
 {% endblock %}