Not all providers claim the rewards
Providers wrongly assume that the protocols will no longer incentivize users with extra rewards.\\nAmong the current providers only the `CompoundProvider` claims the `COMP` incentives, others leave the claim function empty:\\n```\\n  function claim(address _aToken, address _claimer) public override returns (bool) {}\\n```\\n
Adjust the providers to be ready to claim the rewards if necessary.
The implementations of the providers are based on the current situation. They are not flexible enough to support the rewards in case the incentives are back.
```\\n  function claim(address _aToken, address _claimer) public override returns (bool) {}\\n```\\n