use remote agent instead of ssh connection

Jenkinsfile

@@ -1,14 +1,5 @@
-def remote = [:]
-remote.name = 'workstation'
-remote.host = 'workstation'
-remote.user = 'dany'
-remote.identityFile = '/var/jenkins_home/.ssh/id_rsa'
-remote.allowAnyHosts = true
-remote.agent = false
-remote.logLevel = 'INFO'
-
 pipeline{
-  agent { node{ label'master' }}
+  agent { node{ label'workstation' }}
   options {
     // Limit build history with buildDiscarder option:
     // daysToKeepStr: history is only kept up to this many days.
@@ -30,8 +21,6 @@ pipeline{
     stage('Build') {
       steps {
         sh'''
-          export -p | tee build.source
-cat <<"EOF" >>build.source
         cd $WORKSPACE
         docker buildx build \
           --platform amd64 \
@@ -39,9 +28,7 @@ cat <<"EOF" >>build.source
           .
           docker tag xsangle/ci-yocto:focal workstation:5000/xsangle/ci-yocto:focal
           docker push workstation:5000/xsangle/ci-yocto:focal
-EOF
         '''
-        sshScript remote: remote, script: "build.source"
       }
     }
   }