Why RandomNumberConsumerV2 needs a reference to Link token contract?

[bobanm]

Why would a contract that extends VRFConsumerBaseV2 need a reference to a Link token contract? I can't see it being used in RandomNumberConsumerV2. Aren't the payments for the VRF oracle handled separately, through a pre-paid subscription? 🤔

hardhat-starter-kit/contracts/RandomNumberConsumerV2.sol

Line 60 in aba76b2

LINKTOKEN = LinkTokenInterface(link);

[bobanm]

After doing more in-depth research, I'm more convinced that a reference to Link token is pointless, so I opened PR #103 🤓