ethdb: rm snapshot

ethdb/snapshot.go

@@ -1,41 +0,0 @@
-// Copyright 2022 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package ethdb
-
-type Snapshot interface {
-	// Has retrieves if a key is present in the snapshot backing by a key-value
-	// data store.
-	Has(key []byte) (bool, error)
-
-	// Get retrieves the given key if it's present in the snapshot backing by
-	// key-value data store.
-	Get(key []byte) ([]byte, error)
-
-	// Release releases associated resources. Release should always succeed and can
-	// be called multiple times without causing error.
-	Release()
-}
-
-// Snapshotter wraps the Snapshot method of a backing data store.
-type Snapshotter interface {
-	// NewSnapshot creates a database snapshot based on the current state.
-	// The created snapshot will not be affected by all following mutations
-	// happened on the database.
-	// Note don't forget to release the snapshot once it's used up, otherwise
-	// the stale data will never be cleaned up by the underlying compactor.
-	NewSnapshot() (Snapshot, error)
-}