Scripts and tools: Drop no-longer-relevant copyright holder names
Scripts and tools: Drop no-longer-relevant copyright holder names

Now that leveldb, secp256k1, etc. are reliably excluded, these
names will not show up in the searched files.

chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin