Refactor purchasing batch views to use master3

tailbone/templates/batch/edit.mako

@@ -54,18 +54,9 @@
 </ul>
 
 <div class="form-wrapper">
-## TODO: clean this up or fix etc..?
-##   % if master.edit_with_rows:
-##       ${form.render(buttons=capture(buttons))|n}
-##   % else:
-      ${form.render()|n}
-##   % endif
+  ${form.render()|n}
 </div>
 
-% if master.edit_with_rows:
-    ${rows_grid.render_complete(allow_save_defaults=False, tools=capture(self.grid_tools))|n}
-% endif
-
 <div id="execution-options-dialog" style="display: none;">
 
   ${h.form(url('{}.execute'.format(route_prefix), uuid=batch.uuid), name='batch-execution')}