message: graphene: remove GetSalt from graphene.cpp
diff: @@ -1433,13 +1433,6 @@ bool HandleGrapheneBlockRequest(CDataStream &vRecv, CNode *pfrom, const CChainPa
  }
  CMemPoolInfo GetGrapheneMempoolInfo() { return CMemPoolInfo(mempool.size()); }
  -uint256 GetSalt(unsigned char seed)
  -{
  - std::vector<unsigned char> vec(32);
  - vec[0] = seed;
  - return uint256(vec);
  -}
  -
  void RequestFailoverBlock(CNode *pfrom, uint256 blockHash)
  {
  if (IsThinBlocksEnabled() && pfrom->ThinBlockCapable())
  