satellite/metainfo: remove duplicate permission check in BeginCopyObject

BeginCopyObject checks twice for write permission in the destination
bucket. One check should be enough.

Change-Id: I3d5935d34f69cd48eaaf00d0117683edfdcefc05

satellite/metainfo/endpoint_object.go

@@ -1764,14 +1764,6 @@ func (endpoint *Endpoint) BeginCopyObject(ctx context.Context, req *pb.ObjectBeg
 				Time:          now,
 			},
 		},
-		verifyPermission{
-			action: macaroon.Action{
-				Op:            macaroon.ActionWrite,
-				Bucket:        req.NewBucket,
-				EncryptedPath: req.NewEncryptedObjectKey,
-				Time:          now,
-			},
-		},
 	)
 	if err != nil {
 		return nil, err