only add golang.org vendor

vendor/github.com/siddontang/ledisdb/store/rocksdb/snapshot.go

@@ -1,39 +0,0 @@
-// +build rocksdb
-
-package rocksdb
-
-// #cgo LDFLAGS: -lrocksdb
-// #include "rocksdb/c.h"
-import "C"
-
-import (
-	"github.com/siddontang/ledisdb/store/driver"
-)
-
-type Snapshot struct {
-	db           *DB
-	snap         *C.rocksdb_snapshot_t
-	readOpts     *ReadOptions
-	iteratorOpts *ReadOptions
-}
-
-func (s *Snapshot) Get(key []byte) ([]byte, error) {
-	return s.db.get(s.readOpts, key)
-}
-
-func (s *Snapshot) GetSlice(key []byte) (driver.ISlice, error) {
-	return s.db.getSlice(s.readOpts, key)
-}
-
-func (s *Snapshot) NewIterator() driver.IIterator {
-	it := new(Iterator)
-	it.it = C.rocksdb_create_iterator(s.db.db, s.db.iteratorOpts.Opt)
-	return it
-
-}
-
-func (s *Snapshot) Close() {
-	C.rocksdb_release_snapshot(s.db.db, s.snap)
-	s.iteratorOpts.Close()
-	s.readOpts.Close()
-}