genesis: remove redundant copy of public key bytes on clone - thx to Silas
genesis: remove redundant copy of public key bytes on clone - thx to Silas

silasdavis/burrow,eris-ltd/eris-db,benjaminbollen/eris-db,eris-ltd/eris-db,benjaminbollen/burrow,benjaminbollen/eris-db,silasdavis/burrow,silasdavis/burrow,benjaminbollen/burrow