rm obsolete imports

Author: teogeb

packages/network-contracts/contracts/OperatorTokenomics/testcontracts/MockRandomOracle.sol

@@ -3,10 +3,6 @@ pragma solidity ^0.8.13;
 
 import "../IRandomOracle.sol";
 
-// use this file to generate selectors.txt => include "top of inheritance-chain contracts" here
-import "../SponsorshipFactory.sol";
-import "../OperatorFactory.sol";
-
 contract MockRandomOracle is IRandomOracle {
     bytes32[] public outcomes = [ bytes32(0x1234567812345678123456781234567812345678123456781234567812345678) ];
     uint public index = 0;