message: [Cleanup] Remove unused function CheckCoinStakeTimestamp
diff: @@ -499,13 +499,6 @@ bool CheckProofOfStake(const CBlock block, uint256& hashProofOfStake, std::uniqu
  return true;
  }
  -// Check whether the coinstake timestamp meets protocol
  -bool CheckCoinStakeTimestamp(int64_t nTimeBlock, int64_t nTimeTx)
  -{
  - // v0.3 protocol
  - return (nTimeBlock == nTimeTx);
  -}
  -
  // Get stake modifier checksum
  unsigned int GetStakeModifierChecksum(const CBlockIndex* pindex)
  {
  