fix(deps): go mod tidy

go.mod

@@ -3,9 +3,7 @@ module github.com/ipfs/go-graphsync
 go 1.12
 
 require (
-	github.com/filecoin-project/go-data-transfer v0.0.0-20191219005021-4accf56bd2ce
 	github.com/gogo/protobuf v1.3.1
-	github.com/ipfs/go-bitswap v0.1.8
 	github.com/ipfs/go-block-format v0.0.2
 	github.com/ipfs/go-blockservice v0.1.3-0.20190908200855-f22eea50656c
 	github.com/ipfs/go-cid v0.0.4-0.20191112011718-79e75dffeb10
@@ -26,7 +24,6 @@ require (
 	github.com/jbenet/go-random v0.0.0-20190219211222-123a90aedc0c
 	github.com/libp2p/go-libp2p v0.3.0
 	github.com/libp2p/go-libp2p-core v0.2.4
-	github.com/libp2p/go-libp2p-peer v0.2.0
 	github.com/multiformats/go-multiaddr v0.1.1
 	github.com/multiformats/go-multihash v0.0.9
 )

graphsync.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/ipfs/go-cid"
 	"github.com/ipld/go-ipld-prime"
-	peer "github.com/libp2p/go-libp2p-peer"
+	peer "github.com/libp2p/go-libp2p-core/peer"
 )
 
 // RequestID is a unique identifier for a GraphSync request.

testutil/testutil.go

@@ -5,7 +5,6 @@ import (
 	"context"
 	"testing"
 
-	"github.com/ipfs/go-bitswap/testutil"
 	blocks "github.com/ipfs/go-block-format"
 	cid "github.com/ipfs/go-cid"
 	"github.com/ipfs/go-graphsync"
@@ -195,5 +194,5 @@ func VerifyEmptyResponse(ctx context.Context, t *testing.T, responseChan <-chan
 
 // NewTestLink returns a randomly generated IPLD Link
 func NewTestLink() ipld.Link {
-	return cidlink.Link{Cid: testutil.GenerateCids(1)[0]}
+	return cidlink.Link{Cid: GenerateCids(1)[0]}
 }