Update docs

contracts/token/common/ERC2981.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v4.6.0) (token/common/ERC2981.sol)
+// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)
 
 pragma solidity ^0.8.0;
 
@@ -88,7 +88,6 @@ abstract contract ERC2981 is IERC2981, ERC165 {
      *
      * Requirements:
      *
-     * - `tokenId` must be already minted.
      * - `receiver` cannot be the zero address.
      * - `feeNumerator` cannot be greater than the fee denominator.
      */