Revert "fix: use GetBlockPoWHash inside GetBlockHash function"
Revert "fix: use GetBlockPoWHash inside GetBlockHash function"

This reverts commit 35c9616f435dc24eb1587593890f063ef6d9dc9a.

machinecoin-project/machinecoin,machinecoin-project/machinecoin,machinecoin-project/machinecoin,machinecoin-project/machinecoin,machinecoin-project/machinecoin,machinecoin-project/machinecoin