fix unused imports (#13633)

packages/contracts-bedrock/scripts/checks/unused-imports/main.go

@@ -15,7 +15,7 @@ var asPattern = regexp.MustCompile(`(\S+)\s+as\s+(\S+)`)
 
 func main() {
 	if _, err := common.ProcessFilesGlob(
-		[]string{"src/**/*.sol", "scripts/**/*.sol", "test/**/*.sol"},
+		[]string{"src/**/*.sol", "scripts/**/*.sol", "test/**/*.sol", "interfaces/**/*.sol"},
 		[]string{},
 		processFile,
 	); err != nil {

packages/contracts-bedrock/test/dispute/FaultDisputeGame.t.sol

@@ -2,7 +2,6 @@
 pragma solidity ^0.8.15;
 
 // Testing
-import { Test } from "forge-std/Test.sol";
 import { Vm } from "forge-std/Vm.sol";
 import { DisputeGameFactory_Init } from "test/dispute/DisputeGameFactory.t.sol";
 import { AlphabetVM } from "test/mocks/AlphabetVM.sol";

packages/contracts-bedrock/test/invariants/AddressAliasHelper.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { Test } from "forge-std/Test.sol";
 import { StdInvariant } from "forge-std/StdInvariant.sol";
 import { AddressAliasHelper } from "src/vendor/AddressAliasHelper.sol";
 import { InvariantTest } from "test/invariants/InvariantTest.sol";

packages/contracts-bedrock/test/invariants/Encoding.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { Test } from "forge-std/Test.sol";
 import { StdInvariant } from "forge-std/StdInvariant.sol";
 import { Encoding } from "src/libraries/Encoding.sol";
 import { InvariantTest } from "test/invariants/InvariantTest.sol";

packages/contracts-bedrock/test/invariants/Hashing.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { Test } from "forge-std/Test.sol";
 import { StdInvariant } from "forge-std/StdInvariant.sol";
 import { Encoding } from "src/libraries/Encoding.sol";
 import { Hashing } from "src/libraries/Hashing.sol";

packages/contracts-bedrock/test/invariants/SafeCall.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { Test } from "forge-std/Test.sol";
 import { StdUtils } from "forge-std/StdUtils.sol";
 import { Vm } from "forge-std/Vm.sol";
 import { SafeCall } from "src/libraries/SafeCall.sol";