chore(deps): clean up dependencies (#7)

Author: rvagg

go.mod

@@ -5,18 +5,10 @@ go 1.15
 require (
 	github.com/filecoin-project/filecoin-ffi v0.30.4-0.20200910194244-f640612a1a1f
 	github.com/filecoin-project/go-fil-commcid v0.0.0-20201016201715-d41df56b4f6a
-	github.com/filecoin-project/go-fil-markets v1.0.5-0.20201113164554-c5eba40d5335
-	github.com/filecoin-project/go-multistore v0.0.3
 	github.com/filecoin-project/go-padreader v0.0.0-20200903213702-ed5fae088b20
 	github.com/filecoin-project/go-state-types v0.0.0-20201102161440-c8033295a1fc
-	github.com/ipfs/go-block-format v0.0.2
 	github.com/ipfs/go-cid v0.0.7
-	github.com/ipfs/go-datastore v0.4.5
-	github.com/ipfs/go-ipfs-blockstore v1.0.3
 	github.com/ipfs/go-log/v2 v2.1.2-0.20200626104915-0016c0b4b3e4
-	github.com/ipfs/go-merkledag v0.3.2
-	github.com/ipld/go-car v0.1.1-0.20201119040415-11b6074b6d4d
-	github.com/ipld/go-ipld-prime v0.5.1-0.20201021195245-109253e8a018
 	github.com/stretchr/testify v1.6.1
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
 )