Change go-os-rename to standard

Since Go 1.5, os.Rename is consistent across platforms

convert.go

@@ -13,7 +13,6 @@ import (
 
 	"github.com/ipfs/go-datastore"
 	"github.com/ipfs/go-datastore/query"
-	"github.com/jbenet/go-os-rename"
 )
 
 func UpgradeV0toV1(path string, prefixLen int) error {
@@ -152,7 +151,7 @@ func Move(oldPath string, newPath string, out io.Writer) error {
 			// else we found something unexpected, so to be safe just move it
 			log.Warningf("found unexpected file in datastore directory: \"%s\", moving anyway\n", fn)
 			newPath := filepath.Join(newDS.path, fn)
-			err := osrename.Rename(oldPath, newPath)
+			err := os.Rename(oldPath, newPath)
 			if err != nil {
 				return err
 			}
@@ -173,7 +172,7 @@ func moveKey(oldDS *Datastore, newDS *Datastore, key datastore.Key) error {
 	if err != nil {
 		return err
 	}
-	err = osrename.Rename(oldPath, newPath)
+	err = os.Rename(oldPath, newPath)
 	if err != nil {
 		return err
 	}

flatfs.go

@@ -19,7 +19,6 @@ import (
 
 	"github.com/ipfs/go-datastore"
 	"github.com/ipfs/go-datastore/query"
-	"github.com/jbenet/go-os-rename"
 
 	logging "github.com/ipfs/go-log"
 )
@@ -286,7 +285,7 @@ func (fs *Datastore) renameAndUpdateDiskUsage(tmpPath, path string) error {
 	// Rename and add new file's diskUsage. If the rename fails,
 	// it will either a) Re-add the size of an existing file, which
 	// was sustracted before b) Add 0 if there is no existing file.
-	err = osrename.Rename(tmpPath, path)
+	err = os.Rename(tmpPath, path)
 	fs.updateDiskUsage(path, true)
 	return err
 }
@@ -779,7 +778,7 @@ func (fs *Datastore) persistDiskUsageFile() {
 		return
 	}
 
-	osrename.Rename(tmp.Name(), filepath.Join(fs.path, DiskUsageFile))
+	os.Rename(tmp.Name(), filepath.Join(fs.path, DiskUsageFile))
 }
 
 func (fs *Datastore) readDiskUsageFile() int64 {

package.json

@@ -12,12 +12,6 @@
       "name": "go-log",
       "version": "1.4.0"
     },
-    {
-      "author": "jbenet",
-      "hash": "QmaeRR9SpXumU5tYLRkq6x6pfMe8qKzxn4ujBpsTJ2zQG7",
-      "name": "go-os-rename",
-      "version": "0.0.0"
-    },
     {
       "author": "jbenet",
       "hash": "QmeiCcJfDW1GJnWUArudsv5rQsihpi4oyddPhdqo3CfX6i",