No more path rewriting

Path rewriting causes too many problems when vendoring
vendored code. When CNI code is vendored into rkt,
godep has problems code already vendored by CNI.

plugins/main/macvlan/macvlan.go

@@ -21,11 +21,11 @@ import (
 	"os"
 	"runtime"
 
-	"github.com/appc/cni/Godeps/_workspace/src/github.com/vishvananda/netlink"
 	"github.com/appc/cni/pkg/ip"
 	"github.com/appc/cni/pkg/ns"
 	"github.com/appc/cni/pkg/plugin"
 	"github.com/appc/cni/pkg/skel"
+	"github.com/vishvananda/netlink"
 )
 
 type NetConf struct {