Fix wrong license header

.licenserc.yaml

@@ -23,6 +23,7 @@ header:
 
   paths-ignore:
     - go.sum
+    - go.mod
     - '**/*.json'
 
   comment: on-failure

go.mod

@@ -1,22 +1,3 @@
-<!--
-  ~ Licensed to the Apache Software Foundation (ASF) under one
-  ~ or more contributor license agreements.  See the NOTICE file
-  ~ distributed with this work for additional information
-  ~ regarding copyright ownership.  The ASF licenses this file
-  ~ to you 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.
--->
-
 module dolphinscheduler-operator
 
 go 1.17