Feat/dt extraction use go-fil-components/datatransfer (#770)

* Initial commit after changing to go-fil-components/datatransfer
* blow away the datatransfer dir
* use go-fil-components master after its PR #1 was merged
* go mod tidy

chain/deals/client_utils.go

@@ -11,7 +11,7 @@ import (
 	"github.com/libp2p/go-libp2p-core/peer"
 	"golang.org/x/xerrors"
 
-	"github.com/filecoin-project/lotus/datatransfer"
+	"github.com/filecoin-project/go-fil-components/datatransfer"
 	"github.com/filecoin-project/lotus/lib/cborutil"
 	"github.com/filecoin-project/lotus/lib/padreader"
 	"github.com/filecoin-project/lotus/lib/sectorbuilder"

chain/deals/provider.go

@@ -12,11 +12,11 @@ import (
 	"github.com/libp2p/go-libp2p-core/peer"
 	"golang.org/x/xerrors"
 
+	"github.com/filecoin-project/go-fil-components/datatransfer"
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/address"
 	"github.com/filecoin-project/lotus/chain/types"
-	"github.com/filecoin-project/lotus/datatransfer"
 	"github.com/filecoin-project/lotus/lib/cborutil"
 	"github.com/filecoin-project/lotus/lib/statestore"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"

chain/deals/provider_utils.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"runtime"
 
+	"github.com/filecoin-project/go-fil-components/datatransfer"
 	"github.com/filecoin-project/lotus/api"
-	"github.com/filecoin-project/lotus/datatransfer"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
 	"github.com/ipld/go-ipld-prime"