cleanup object-lock/bucket tagging for gateways (#9548)

This PR is to ensure that we call the relevant object
layer APIs for necessary S3 API level functionalities
allowing gateway implementations to return proper
errors as NotImplemented{}

This allows for all our tests in mint to behave
appropriately and can be handled appropriately as
well.

cmd/gateway-unsupported.go

@@ -25,6 +25,7 @@ import (
 	"github.com/minio/minio-go/v6/pkg/tags"
 	bucketsse "github.com/minio/minio/pkg/bucket/encryption"
 	"github.com/minio/minio/pkg/bucket/lifecycle"
+	objectlock "github.com/minio/minio/pkg/bucket/object/lock"
 	"github.com/minio/minio/pkg/bucket/policy"
 
 	"github.com/minio/minio/pkg/madmin"
@@ -198,6 +199,35 @@ func (a GatewayUnsupported) GetMetrics(ctx context.Context) (*Metrics, error) {
 	return &Metrics{}, NotImplemented{}
 }
 
+// SetBucketTagging - not implemented
+func (a GatewayUnsupported) SetBucketTagging(ctx context.Context, bucket string, t *tags.Tags) error {
+	logger.LogIf(ctx, NotImplemented{})
+	return NotImplemented{}
+}
+
+// GetBucketObjectLockConfig - not implemented
+func (a GatewayUnsupported) GetBucketObjectLockConfig(ctx context.Context, bucket string) (*objectlock.Config, error) {
+	logger.LogIf(ctx, NotImplemented{})
+	return nil, NotImplemented{}
+}
+
+// SetBucketObjectLockConfig - not implemented
+func (a GatewayUnsupported) SetBucketObjectLockConfig(ctx context.Context, bucket string, _ *objectlock.Config) error {
+	logger.LogIf(ctx, NotImplemented{})
+	return NotImplemented{}
+}
+
+// GetBucketTagging - not implemented
+func (a GatewayUnsupported) GetBucketTagging(ctx context.Context, bucket string) (*tags.Tags, error) {
+	return nil, NotImplemented{}
+}
+
+// DeleteBucketTagging - not implemented.
+func (a GatewayUnsupported) DeleteBucketTagging(ctx context.Context, bucket string) error {
+	logger.LogIf(ctx, NotImplemented{})
+	return NotImplemented{}
+}
+
 // PutObjectTag - not implemented.
 func (a GatewayUnsupported) PutObjectTag(ctx context.Context, bucket, object string, tags string) error {
 	logger.LogIf(ctx, NotImplemented{})