Remove unused CK database key

util/keys/ck.go

@@ -1,51 +0,0 @@
-// Copyright © 2016 Abcum Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package keys
-
-import (
-	"fmt"
-)
-
-// CK ...
-type CK struct {
-	KV interface{}
-	CF interface{}
-	CK interface{}
-}
-
-// init initialises the key
-func (k *CK) init() *CK {
-	k.CF = "!"
-	k.CK = "¥"
-	return k
-}
-
-// Encode encodes the key into binary
-func (k *CK) Encode() []byte {
-	k.init()
-	return encode(k.KV, k.CF, k.CK)
-}
-
-// Decode decodes the key from binary
-func (k *CK) Decode(data []byte) {
-	k.init()
-	decode(data, &k.KV, &k.CF, &k.CK)
-}
-
-// String returns a string representation of the key
-func (k *CK) String() string {
-	k.init()
-	return fmt.Sprintf("/%s/%s/%s", k.KV, k.CF, k.CK)
-}

util/keys/keys_test.go

@@ -84,11 +84,6 @@ func TestMain(t *testing.T) {
 			obj: &KV{KV: "surreal"},
 			new: &KV{},
 		},
-		{
-			str: "/surreal/!/¥",
-			obj: &CK{KV: "surreal"},
-			new: &CK{},
-		},
 		{
 			str: "/surreal/abcum",
 			obj: &NS{KV: "surreal", NS: "abcum"},