ipns test: unused import + rmv old comment

fuse/ipns/ipns_test.go

@@ -5,7 +5,6 @@ import (
 	"crypto/rand"
 	"io/ioutil"
 	"os"
-	"runtime"
 	"strings"
 	"testing"
 	"time"
@@ -300,12 +299,6 @@ func TestFastRepublish(t *testing.T) {
 
 // Test writing a medium sized file one byte at a time
 func TestMultiWrite(t *testing.T) {
-	/*
-		if runtime.GOOS == "darwin" {
-			link := "https://github.com/jbenet/go-ipfs/issues/147"
-			t.Skipf("Skipping as is broken in OSX. See %s", link)
-		}
-	*/
 
 	_, mnt := setupIpnsTest(t, nil)
 	defer mnt.Close()