Remove unused functions and constants (#6175)

pkg/madmin/constants.go

@@ -1,22 +0,0 @@
-/*
- * Minio Cloud Storage, (C) 2016 Minio, Inc.
- *
- * 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 madmin
-
-const (
-	// Unsigned payload.
-	unsignedPayload = "UNSIGNED-PAYLOAD"
-)

pkg/madmin/utils.go

@@ -17,7 +17,6 @@
 package madmin
 
 import (
-	"crypto/md5"
 	"encoding/json"
 	"io"
 	"io/ioutil"
@@ -38,13 +37,6 @@ func sum256(data []byte) []byte {
 	return hash.Sum(nil)
 }
 
-// sumMD5 calculate sumMD5 sum for an input byte array.
-func sumMD5(data []byte) []byte {
-	hash := md5.New()
-	hash.Write(data)
-	return hash.Sum(nil)
-}
-
 // jsonDecoder decode json to go type.
 func jsonDecoder(body io.Reader, v interface{}) error {
 	d := json.NewDecoder(body)