Chore: Remove unused files (#25124)

apps/meteor/.drone.yml

-pipeline:
-  restore-cache:
-    image: drillster/drone-volume-cache
-    restore: true
-    mount:
-      - /drone/.meteor/
-      - ./node_modules
-      - ./.meteor/local
-    volumes:
-      - /tmp/cache/Rocket.Chat:/cache
-  build:
-    image: ubuntu:16.04
-    environment:
-      - METEOR_ALLOW_SUPERUSER=true
-    commands:
-      - apt update && apt install curl git python g++ build-essential bzip2 -y
-      - export HOME=/drone
-      - export PATH="/drone/.meteor:$PATH"
-      - if [ ! -e "/drone/.meteor/meteor" ]; then export HOME=/drone; curl https://install.meteor.com | sed s/--progress-bar/-sL/g | /bin/sh; fi
-      - which meteor
-      - meteor npm install
-      - set +e
-      - meteor add rocketchat:lib
-      - set -e
-      - mkdir /drone/build
-      - meteor build --allow-superuser --server-only --directory /drone/build
-      - cp .docker/Dockerfile.local /drone/build/Dockerfile
-  rebuild-cache:
-    image: drillster/drone-volume-cache
-    rebuild: true
-    mount:
-      - /drone/.meteor/
-      - ./node_modules
-      - ./.meteor/local
-    volumes:
-      - /tmp/cache/Rocket.Chat:/cache
-  docker:
-    image: plugins/docker
-    repo: rocketchat/rocket.chat
-    dockerfile: /drone/build/Dockerfile
-    storage_driver: overlay
-    context: /drone/build
-    secrets: [ docker_username, docker_password ]
-    tag: designpreview

apps/meteor/.drone.yml.sig

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