remove unneeded DOCKER_HOST from Jenkinsfile for sslproxy

dockerfiles/services/sslproxy/Jenkinsfile

@@ -1,10 +1,7 @@
 pipeline {
     environment {
-        DOCKERFILE = 'Dockerfile'
         APP_NAME = 'sslproxy'
-        APP_PORT = '80'
         WORKDIR = 'dockerfiles/services/sslproxy'
-        DOCKER_HOST = 'dkhost:2376'
     }
 
     agent { label 'docker' }
@@ -19,8 +16,6 @@ pipeline {
         stage('prepare') {
             steps {
                 checkout scm
-//                 git credentialsId: 'f1f58215-c789-44a2-9b72-50e4425cb061', url: 'ssh://git@git.xai-corp.net:10022/xai-corp.net/provisioning.git'
-
                 sh 'ls'
             }
         }
@@ -29,12 +24,6 @@ pipeline {
             steps {
                 dir(WORKDIR) {
                     withDockerRegistry(credentialsId: 'b11d7f1a-81ac-4daf-8842-56afc0d2370e', url: 'http://dkregistry.xai-corp.net:5000') {
-//                     script {
-//                         docker.withRegistry('http://dkregistry.xai-corp.net:5000', 'b11d7f1a-81ac-4daf-8842-56afc0d2370e') {
-//                             def customImage = docker.build("dkregistry.xai-corp.net:5000/sslproxy:2.1", "-f ${DOCKERFILE} .")
-//                             customImage.push()
-//                         }
-//                     }
                         sh "pwd"
                         sh "xai build"
                     }