remove unused identifier field from TraitRedemption

Author: ryanio

script/DeployAndRedeemTrait.s.sol

@@ -63,7 +63,6 @@ contract DeployAndRedeemTrait is Script, Test {
         traitRedemptions[0] = TraitRedemption({
             substandard: 1,
             token: address(redeemToken),
-            identifier: 0, // unused field
             traitKey: traitKey,
             traitValue: traitValue,
             substandardValue: substandardValue

src/lib/ERC7498NFTRedeemables.sol

@@ -458,9 +458,7 @@ contract ERC7498NFTRedeemables is IERC165, IERC7498, DynamicTraits, RedeemablesE
                     uint256 newTraitValue = uint256(currentTraitValue) - uint256(traitValue);
 
                     // Decrement the trait by the trait value.
-                    IERC7496(token).setTrait(
-                        traitRedemptions[i].identifier, traitRedemptions[i].traitKey, bytes32(newTraitValue)
-                    );
+                    IERC7496(token).setTrait(identifier, traitRedemptions[i].traitKey, bytes32(newTraitValue));
                 } else if (substandard == 4) {
                     // Revert if the current trait value is not equal to the substandard value.
                     if (currentTraitValue != substandardValue) {

src/lib/RedeemablesStructs.sol

@@ -21,7 +21,6 @@ struct CampaignRequirements {
 struct TraitRedemption {
     uint8 substandard;
     address token;
-    uint256 identifier;
     bytes32 traitKey;
     bytes32 traitValue;
     bytes32 substandardValue;

test/ERC7498-DynamicTraits.t.sol

@@ -77,7 +77,6 @@ contract ERC7498_DynamicTraits is BaseRedeemablesTest {
         traitRedemptions[0] = TraitRedemption({
             substandard: 1,
             token: address(redeemToken),
-            identifier: 0, // unused field
             traitKey: traitKey,
             traitValue: bytes32(uint256(1)),
             substandardValue: bytes32(uint256(0))

test/RedeemableContractOfferer-1155.t.sol.txt

@@ -1071,7 +1071,6 @@ contract TestRedeemableContractOfferer_1155 is BaseOrderTest, RedeemablesErrors
     //         TraitRedemption memory traitRedemption = TraitRedemption({
     //             substandard: 0, // set value to traitValue
     //             token: address(dynamicTraitsToken),
-    //             identifier: redeemableTokenId0,
     //             traitKey: "isRedeemed",
     //             traitValue: bytes32(abi.encode(1)),
     //             substandardValue: bytes32(abi.encode(0))

test/RedeemableContractOfferer-721.t.sol.txt

@@ -1022,7 +1022,6 @@ contract TestRedeemableContractOfferer_721 is BaseOrderTest, RedeemablesErrors {
             //     traitRedemption: TraitRedemption({
             //         substandard: 0, // set value to traitValue
             //         token: address(dynamicTraitsToken),
-            //         identifier: redeemableTokenId0,
             //         traitKey: "isRedeemed",
             //         traitValue: bytes32(abi.encode(1)),
             //         substandardValue: bytes32(abi.encode(0))
@@ -1036,7 +1035,6 @@ contract TestRedeemableContractOfferer_721 is BaseOrderTest, RedeemablesErrors {
             TraitRedemption memory traitRedemption = TraitRedemption({
                 substandard: 0, // set value to traitValue
                 token: address(dynamicTraitsToken),
-                identifier: redeemableTokenId0,
                 traitKey: "isRedeemed",
                 traitValue: bytes32(abi.encode(1)),
                 substandardValue: bytes32(abi.encode(0))