removed old commands files

https://www.youtube.com/watch?v=kyFyAqLtHq8

core/commands/refs.go

@@ -1,65 +0,0 @@
-package commands
-
-import (
-	"io"
-
-	mh "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multihash"
-	"github.com/jbenet/go-ipfs/core"
-	mdag "github.com/jbenet/go-ipfs/merkledag"
-	u "github.com/jbenet/go-ipfs/util"
-)
-
-func Refs(n *core.IpfsNode, args []string, opts map[string]interface{}, out io.Writer) error {
-	unique, ok := opts["u"].(bool)
-	if !ok {
-		unique = false
-	}
-
-	recursive, ok := opts["r"].(bool)
-	if !ok {
-		recursive = false
-	}
-
-	var refsSeen map[u.Key]bool
-	if unique {
-		refsSeen = make(map[u.Key]bool)
-	}
-
-	for _, fn := range args {
-		nd, err := n.Resolver.ResolvePath(fn)
-		if err != nil {
-			return err
-		}
-
-		printRefs(n, nd, refsSeen, recursive)
-	}
-	return nil
-}
-
-func printRefs(n *core.IpfsNode, nd *mdag.Node, refSeen map[u.Key]bool, recursive bool) {
-	for _, link := range nd.Links {
-		printRef(link.Hash, refSeen)
-
-		if recursive {
-			nd, err := n.DAG.Get(u.Key(link.Hash))
-			if err != nil {
-				log.Errorf("error: cannot retrieve %s (%s)", link.Hash.B58String(), err)
-				return
-			}
-
-			printRefs(n, nd, refSeen, recursive)
-		}
-	}
-}
-
-func printRef(h mh.Multihash, refsSeen map[u.Key]bool) {
-	if refsSeen != nil {
-		_, found := refsSeen[u.Key(h)]
-		if found {
-			return
-		}
-		refsSeen[u.Key(h)] = true
-	}
-
-	u.POut("%s\n", h.B58String())
-}