remove nukage-ci build from pipeline

.woodpecker.yml

@@ -1,10 +1,4 @@
-pipeline:
-  build-environment:
-    image: docker
-    commands:
-      - cat Dockerfile | docker build -t nukage-ci -
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock     
+steps:
   build-engine:
     image: nukage-ci
     commands: