web_renderjs_ui: remove handlebars fossils

these are not used anymore

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_pt_form_dialog_html.html

@@ -19,14 +19,6 @@
     <script src="jiodev.js" type="text/javascript"></script>
     <script src="domsugar.js" type="text/javascript"></script>
 
-    <script id="dialog-button-template" type="text/x-handlebars-template">
-      {{#if show_update_button}}
-        <button disabled name="action_update" type="button" data-i18n="Update">Update</button>
-      {{/if}}
-      <input disabled name="action_confirm" class="dialogconfirm" type="submit" data-i18n="[value]Proceed" value="Proceed" />
-      <a class="dialogcancel" data-i18n="Cancel">Cancel</a>
-    </script>
-
     <!-- custom script -->
     <script src="gadget_global.js" type="text/javascript"></script>
     <script src="gadget_erp5_global.js" type="text/javascript"></script>