Dead code cleanup: repo.IsInitialized

The version actually used is in fsrepo, and belongs there as it knows
about fsrepo file layout.

repo/repo.go

@@ -5,7 +5,6 @@ import (
 
 	datastore "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore"
 	config "github.com/jbenet/go-ipfs/repo/config"
-	util "github.com/jbenet/go-ipfs/util"
 )
 
 type Repo interface {
@@ -19,15 +18,3 @@ type Repo interface {
 
 	io.Closer
 }
-
-// IsInitialized returns true if the path is home to an initialized IPFS
-// repository.
-func IsInitialized(path string) bool {
-	if !util.FileExists(path) {
-		return false
-	}
-	// TODO add logging check
-	// TODO add datastore check
-	// TODO add config file check
-	return true
-}