mod remove unused package

Author: jingyugao

go.mod

@@ -77,4 +77,3 @@ require (
 )
 
 replace github.com/pingcap/tipb => github.com/jingyugao/tipb v0.0.0-20190911070230-03bcdbb81a3f
-

go.sum

@@ -101,8 +101,6 @@ github.com/grpc-ecosystem/grpc-gateway v1.5.1/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpg
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
-github.com/jingyugao/tipb v0.0.0-20190806070524-16909e03435e h1:SgfzTAMEcs003GgjRX+iwP50/myD5xKUd/E6pAXvZhs=
-github.com/jingyugao/tipb v0.0.0-20190806070524-16909e03435e/go.mod h1:EBxLpOvivm5T+SDsuT+icoNOaQGLvz2kBmMfKzhmIJ4=
 github.com/jingyugao/tipb v0.0.0-20190911070230-03bcdbb81a3f h1:mtQuOG0TM05qjRfmOAm5nMzo2igGZHW99faxOKfwFNw=
 github.com/jingyugao/tipb v0.0.0-20190911070230-03bcdbb81a3f/go.mod h1:EBxLpOvivm5T+SDsuT+icoNOaQGLvz2kBmMfKzhmIJ4=
 github.com/jonboulle/clockwork v0.1.0 h1:VKV+ZcuP6l3yW9doeqz6ziZGgcynBVQO+obU0+0hcPo=
@@ -177,8 +175,6 @@ github.com/pingcap/pd v0.0.0-20190712044914-75a1f9f3062b h1:oS9PftxQqgcRouKhhdaB
 github.com/pingcap/pd v0.0.0-20190712044914-75a1f9f3062b/go.mod h1:3DlDlFT7EF64A1bmb/tulZb6wbPSagm5G4p1AlhaEDs=
 github.com/pingcap/tidb-tools v2.1.3-0.20190321065848-1e8b48f5c168+incompatible h1:MkWCxgZpJBgY2f4HtwWMMFzSBb3+JPzeJgF3VrXE/bU=
 github.com/pingcap/tidb-tools v2.1.3-0.20190321065848-1e8b48f5c168+incompatible/go.mod h1:XGdcy9+yqlDSEMTpOXnwf3hiTeqrV6MN/u1se9N8yIM=
-github.com/pingcap/tipb v0.0.0-20190806070524-16909e03435e h1:H7meq8QPmWGImOkHTQYAWw82zwIqndJaCDPVUknOHbM=
-github.com/pingcap/tipb v0.0.0-20190806070524-16909e03435e/go.mod h1:RtkHW8WbcNxj8lsbzjaILci01CtYnYbIkQhjyZWrWVI=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=