Attempt to define pipeline for go1.16

Jenkinsfile

@@ -1,6 +1,6 @@
 #!groovy
 /*
-   Copyright 2017-2019 Jan Dittberner
+Copyright 2017-2021 Jan Dittberner
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this program except in compliance with the License.
@@ -17,19 +17,15 @@
 pipeline {
     agent any
 
+    def root = tool type: 'go', name: 'Go 1.16'
+
     environment {
+        GOROOT= "${root}"
         GOPATH = "${pwd(tmp: true)}/gocode"
-        PATH = "${GOPATH}/bin:${PATH}"
+        PATH = "${root}/bin:${PATH}"
     }
 
     stages {
-        stage('Install go-bindata') {
-            steps {
-                sh "mkdir -p '${GOPATH}/bin'"
-                sh "cd '${GOPATH}/bin'"
-                sh "go get -u -v github.com/shuLhan/go-bindata/cmd/go-bindata"
-            }
-        }
         stage('Build') {
             steps {
                 sh "make distclean && make BUILD='${env.BUILD_TAG}'"