fix(KC): removed unused variable

Author: unknownunknown1

contracts/src/arbitration/KlerosCore.sol

@@ -425,7 +425,6 @@ contract KlerosCore is IArbitrator {
     /// @param _disputeKitIDs The IDs of dispute kits which support should be added/removed.
     /// @param _enable Whether add or remove the dispute kits from the court.
     function enableDisputeKits(uint96 _courtID, uint256[] memory _disputeKitIDs, bool _enable) external onlyByGovernor {
-        Court storage court = courts[_courtID];
         for (uint256 i = 0; i < _disputeKitIDs.length; i++) {
             if (_enable) {
                 require(_disputeKitIDs[i] > 0 && _disputeKitIDs[i] < disputeKitNodes.length, "Wrong DK index");