Removed debug flag from docker push, removed drone build number tag

.drone.yml

@@ -22,16 +22,14 @@ steps:
   - name: docker build and push
     image: plugins/docker
     settings:
-      debug: true
       repo: khwezi/mngomalab
       registry: index.docker.io      
-      username: khwezi
-      # username:
-      #   from_secret: docker_username
+      username:
+        from_secret: docker_username
       password: 
         from_secret: docker_password
       dockerfile: Dockerfile
       context: .
       tags:
         - latest
-        - ${DRONE_BUILD_NUMBER}
+        #- ${DRONE_BUILD_NUMBER}