Cleanup code comments and lint fixes

Signed-off-by: Derek McGowan <derek@mcg.dev>

services/streaming/service.go

@@ -17,6 +17,7 @@
 package streaming
 
 import (
+	"errors"
 	"io"
 
 	api "github.com/containerd/containerd/api/services/streaming/v1"
@@ -107,7 +108,7 @@ func (ss *serviceStream) Send(a typeurl.Any) error {
 
 func (ss *serviceStream) Recv() (a typeurl.Any, err error) {
 	a, err = ss.s.Recv()
-	if err != io.EOF {
+	if !errors.Is(err, io.EOF) {
 		err = errdefs.FromGRPC(err)
 	}
 	return

services/transfer/service.go

@@ -119,7 +119,6 @@ func (s *service) Transfer(ctx context.Context, req *transferapi.TransferRequest
 		return nil, errdefs.ToGRPC(err)
 	}
 	dst, err := s.convertAny(ctx, req.Destination)
-	plugins.ResolveType(req.Source)
 	if err != nil {
 		return nil, errdefs.ToGRPC(err)
 	}