Remove LDO reward token from Lido's contract.ts

[deepcrazy]

• As per conversation with @mariogutval here LIDO doesn't have LDO (0x5A98FcBEA516Cf06857215779Fd812CA3beF1B32) as a reward token rather it is a governance token only. Hence we should not consider it in contracts.ts of LIDO as reward tokens data.
  • "rewardTokens": ["0x5A98FcBEA516Cf06857215779Fd812CA3beF1B32"], should be replaced with: "rewardTokens": [],

Reference: https://docs.lido.fi/lido-dao