Revert "mint demo funds for testnet"

This reverts commit ac9f5c4054.

node/node_genesis.go

@@ -76,7 +76,6 @@ func (node *Node) SetupGenesisBlock(db ethdb.Database, shardID uint32, myShardSt
 			genesisAlloc[foundationAddress] = core.GenesisAccount{Balance: genesisFunds}
 		}
 	case nodeconfig.Testnet:
-		AddDemoAddressesToGenesisAlloc(genesisAlloc)
 		fallthrough
 	case nodeconfig.Localnet:
 		fallthrough
@@ -152,13 +151,3 @@ func AddNodeAddressesToGenesisAlloc(genesisAlloc core.GenesisAlloc) {
 		genesisAlloc[address] = core.GenesisAccount{Balance: testBankFunds}
 	}
 }
-
-// AddDemoAddressesToGenesisAlloc funds demo addresses with free fund.
-func AddDemoAddressesToGenesisAlloc(genesisAlloc core.GenesisAlloc) {
-	for _, account := range DemoAccounts {
-		testBankFunds := big.NewInt(InitFreeFund)
-		testBankFunds = testBankFunds.Mul(testBankFunds, big.NewInt(params.Ether))
-		address := common.HexToAddress(account.Address)
-		genesisAlloc[address] = core.GenesisAccount{Balance: testBankFunds}
-	}
-}