remove pointless update_mwi() in vm_list api command

src/mod/applications/mod_voicemail/mod_voicemail.c

@@ -4390,7 +4390,6 @@ SWITCH_STANDARD_API(voicemail_list_api_function)
 
 		vm_execute_sql_callback(profile, profile->mutex, sql, api_list_callback, stream);
 		switch_safe_free(sql);
-		update_mwi(profile, id, domain, "inbox");
 	
 		if (!strcasecmp(format, "xml")) {
 			stream->write_function(stream, "</voicemail>\n");