op-dispute-mon: Remove legacy bindings (#11153)

These were only being used in a test to load the ABI which should be done via snapshots.

op-dispute-mon/mon/extract/caller_test.go

@@ -7,11 +7,11 @@ import (
 
 	contractMetrics "github.com/ethereum-optimism/optimism/op-challenger/game/fault/contracts/metrics"
 	"github.com/ethereum-optimism/optimism/op-service/sources/batching/rpcblock"
+	"github.com/ethereum-optimism/optimism/packages/contracts-bedrock/snapshots"
 	"github.com/ethereum/go-ethereum/common"
 
 	faultTypes "github.com/ethereum-optimism/optimism/op-challenger/game/fault/types"
 	"github.com/ethereum-optimism/optimism/op-challenger/game/types"
-	"github.com/ethereum-optimism/optimism/op-dispute-mon/bindings"
 	"github.com/ethereum-optimism/optimism/op-service/sources/batching"
 	batchingTest "github.com/ethereum-optimism/optimism/op-service/sources/batching/test"
 	"github.com/stretchr/testify/require"
@@ -68,8 +68,7 @@ func TestMetadataCreator_CreateContract(t *testing.T) {
 }
 
 func setupMetadataLoaderTest(t *testing.T) (*batching.MultiCaller, *mockCacheMetrics) {
-	fdgAbi, err := bindings.FaultDisputeGameMetaData.GetAbi()
-	require.NoError(t, err)
+	fdgAbi := snapshots.LoadFaultDisputeGameABI()
 	stubRpc := batchingTest.NewAbiBasedRpc(t, fdgAddr, fdgAbi)
 	caller := batching.NewMultiCaller(stubRpc, batching.DefaultBatchSize)
 	stubRpc.SetResponse(fdgAddr, "version", rpcblock.Latest, nil, []interface{}{"0.18.0"})