Remove node build from drone

Signed-off-by: Julius Härtl <jus@bitgrid.net>

.drone.yml

@@ -130,28 +130,3 @@ trigger:
   event:
     - pull_request
     - push
-
----
-kind: pipeline
-name: frontend
-steps:
-  - name: install
-    image: node:lts-alpine
-    commands:
-      - npm install
-  - name: eslint
-    image: node:lts-alpine
-    commands:
-      - npm run lint
-  - name: jsbuild
-    image: node:lts-alpine
-    commands:
-      - npm run build
-trigger:
-  branch:
-    - master
-    - stable*
-    - vue
-  event:
-    - pull_request
-    - push