remove the circuit v2 code

go.mod

@@ -6,14 +6,11 @@ require (
 	github.com/gogo/protobuf v1.3.2
 	github.com/ipfs/go-log v1.0.5
 	github.com/libp2p/go-buffer-pool v0.0.2
-	github.com/libp2p/go-libp2p-asn-util v0.0.0-20210211060025-0db24c10d3bd
 	github.com/libp2p/go-libp2p-blankhost v0.2.0
 	github.com/libp2p/go-libp2p-core v0.8.6
-	github.com/libp2p/go-libp2p-peerstore v0.2.8
 	github.com/libp2p/go-libp2p-swarm v0.5.3
 	github.com/libp2p/go-libp2p-transport-upgrader v0.4.6
 	github.com/libp2p/go-msgio v0.0.6
-	github.com/libp2p/go-tcp-transport v0.2.7
 	github.com/multiformats/go-multiaddr v0.3.3
 	github.com/multiformats/go-varint v0.0.6
 )

go.sum

@@ -220,12 +220,9 @@ github.com/ipfs/go-cid v0.0.7/go.mod h1:6Ux9z5e+HpkQdckYoX1PG/6xqKspzlEIR5SDmgqg
 github.com/ipfs/go-datastore v0.4.1/go.mod h1:SX/xMIKoCszPqp+z9JhPYCmoOoXTvaa13XEbGtsFUhA=
 github.com/ipfs/go-datastore v0.4.4/go.mod h1:SX/xMIKoCszPqp+z9JhPYCmoOoXTvaa13XEbGtsFUhA=
 github.com/ipfs/go-datastore v0.4.5/go.mod h1:eXTcaaiN6uOlVCLS9GjJUJtlvJfM3xk23w3fyfrmmJs=
-github.com/ipfs/go-detect-race v0.0.1 h1:qX/xay2W3E4Q1U7d9lNs1sU9nvguX0a7319XbyQ6cOk=
-github.com/ipfs/go-detect-race v0.0.1/go.mod h1:8BNT7shDZPo99Q74BpGMK+4D8Mn4j46UU0LZ723meps=
 github.com/ipfs/go-ds-badger v0.2.7/go.mod h1:02rnztVKA4aZwDuaRPTf8mpqcKmXP7mLl6JPxd14JHA=
 github.com/ipfs/go-ds-leveldb v0.4.2/go.mod h1:jpbku/YqBSsBc1qgME8BkWS4AxzF2cEu1Ii2r79Hh9s=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
-github.com/ipfs/go-ipfs-util v0.0.2/go.mod h1:CbPtkWJzjLdEcezDns2XYaehFVNXG9zrdrtMecczcsQ=
 github.com/ipfs/go-log v0.0.1/go.mod h1:kL1d2/hzSpI0thNYjiKfjanbVNU+IIGA/WnNESY9leM=
 github.com/ipfs/go-log v1.0.4/go.mod h1:oDCg2FkjogeFOhqqb+N39l2RpTNPL6F/StPkB3kPgcs=
 github.com/ipfs/go-log v1.0.5 h1:2dOuUCB1Z7uoczMWgAyDck5JLb72zHzrMnGnCNNbvY8=
@@ -279,17 +276,13 @@ github.com/libp2p/go-addr-util v0.1.0/go.mod h1:6I3ZYuFr2O/9D+SoyM0zEw0EF3YkldtT
 github.com/libp2p/go-buffer-pool v0.0.1/go.mod h1:xtyIz9PMobb13WaxR6Zo1Pd1zXJKYg0a8KiIvDp3TzQ=
 github.com/libp2p/go-buffer-pool v0.0.2 h1:QNK2iAFa8gjAe1SPz6mHSMuCcjs+X1wlHzeOSqcmlfs=
 github.com/libp2p/go-buffer-pool v0.0.2/go.mod h1:MvaB6xw5vOrDl8rYZGLFdKAuk/hRoRZd1Vi32+RXyFM=
-github.com/libp2p/go-cidranger v1.1.0 h1:ewPN8EZ0dd1LSnrtuwd4709PXVcITVeuwbag38yPW7c=
-github.com/libp2p/go-cidranger v1.1.0/go.mod h1:KWZTfSr+r9qEo9OkI9/SIEeAtw+NNoU0dXIXt15Okic=
 github.com/libp2p/go-conn-security-multistream v0.2.1 h1:ft6/POSK7F+vl/2qzegnHDaXFU0iWB4yVTYrioC6Zy0=
 github.com/libp2p/go-conn-security-multistream v0.2.1/go.mod h1:cR1d8gA0Hr59Fj6NhaTpFhJZrjSYuNmhpT2r25zYR70=
 github.com/libp2p/go-eventbus v0.2.1 h1:VanAdErQnpTioN2TowqNcOijf6YwhuODe4pPKSDpxGc=
 github.com/libp2p/go-eventbus v0.2.1/go.mod h1:jc2S4SoEVPP48H9Wpzm5aiGwUCBMfGhVhhBjyhhCJs8=
 github.com/libp2p/go-flow-metrics v0.0.1/go.mod h1:Iv1GH0sG8DtYN3SVJ2eG221wMiNpZxBdp967ls1g+k8=
 github.com/libp2p/go-flow-metrics v0.0.3 h1:8tAs/hSdNvUiLgtlSy3mxwxWP4I9y/jlkPFT7epKdeM=
 github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS27omG0uWU5slZs=
-github.com/libp2p/go-libp2p-asn-util v0.0.0-20210211060025-0db24c10d3bd h1:4+wRQ07VJe0ogkb74jFJwhiPuuSbSY1zSUl+tFlNbpg=
-github.com/libp2p/go-libp2p-asn-util v0.0.0-20210211060025-0db24c10d3bd/go.mod h1:nRMRTab+kZuk0LnKZpxhOVH/ndsdr2Nr//Zltc/vwgo=
 github.com/libp2p/go-libp2p-blankhost v0.2.0 h1:3EsGAi0CBGcZ33GwRuXEYJLLPoVWyXJ1bcJzAJjINkk=
 github.com/libp2p/go-libp2p-blankhost v0.2.0/go.mod h1:eduNKXGTioTuQAUcZ5epXi9vMl+t4d8ugUBRQ4SqaNQ=
 github.com/libp2p/go-libp2p-core v0.0.1/go.mod h1:g/VxnTZ/1ygHxH3dKok7Vno1VfpvGcGip57wjTU4fco=