/**
* Delete older block in the datastore.
*
- * @param the plugin
+ * @param plugin the plugin
* @param query query for the block
- * @param expiration time how old does the block have to be for deletion
- * @return #GNUNET_OK on success, else #GNUNET_SYSERR
+ * @param expiration_time how old does the block have to be for deletion
*/
static void
delete_old_block (struct Plugin *plugin,