message: remove duplicated OWT token
diff: "symbol": "OPEN (OPEN)",
  "decimal": 8
  },
  - {
  - "address": "0xc2494604e9dcefa2a70dcebf81e6d7be064a334e",
  - "symbol": "OWT",
  - "decimal": 18
  - },
  {
  "address": "0x4355fC160f74328f9b383dF2EC589bB3dFd82Ba0",
  "symbol": "OPT",
  