public static Bytes createWithoutProposerSeal(
      final Bytes vanityData, final List<Address> validators) {
    return CliqueExtraData.encodeUnsealed(vanityData, validators);
  }
Create without proposer seal.

@param vanityData the vanity data
@param validators the validators
@return the bytes
consensus/clique/src/main/java/org/hyperledger/besu/consensus/clique/CliqueExtraData.java