[FIX] mis_builder: avoid calling compute twice in widget

mis_builder/static/src/js/mis_builder.js

@@ -26,7 +26,6 @@ openerp.mis_builder = function(instance) {
             self.mis_report_instance_id = self.getParent().datarecord.id
             if (self.mis_report_instance_id) {
                 self.getParent().dataset.context['no_destroy'] = true;
-                self.generate_content();
             } else {
                 self.display_settings();
             }