make witness scripts abide by max_element_size again.
make witness scripts abide by max_element_size again.

decentraland/decentraland-node,VidaID/bcoin,VidaID/bcoin,decentraland/decentraland-node,decentraland/bronzeage-node,decentraland/bronzeage-node,VidaID/bcoin,decentraland/bronzeage-node,decentraland/decentraland-node