Remove duplicate Drone manifest

.drone.yml

@@ -1,76 +0,0 @@
----
-kind: pipeline
-name: build
-
-platform:
-  os: linux
-  arch: amd64
-
-steps:
-- name: set image tags
-  image: alpine
-  commands:
-  - ./write-tags.sh $VERSION contrib > .tags
-  - "# Will build the following tags:"
-  - cat .tags
-  environment:
-    VERSION: 7.2.10-r2
-
-- name: build docker image
-  image: ovdnet/drone-docker
-  settings:
-    build_args:
-    - ATHEME_VERSION=7.2.10-r2
-    password:
-      from_secret: docker_password
-    repo: ovdnet/atheme
-    username:
-      from_secret: docker_user
-  volumes:
-  - name: docker-socket
-    path: /var/run/docker.sock
-
-volumes:
-- name: docker-socket
-  host:
-    path: /var/run/docker.sock
-
----
-kind: pipeline
-name: build-contrib
-
-platform:
-  os: linux
-  arch: amd64
-
-steps:
-- name: set image tags
-  image: alpine
-  commands:
-  - ./write-tags.sh $VERSION contrib > .tags
-  - "# Will build the following tags:"
-  - cat .tags
-  environment:
-    VERSION: 7.2.10-r2
-
-- name: build docker image
-  image: ovdnet/drone-docker
-  settings:
-    build_args:
-    - ATHEME_VERSION=7.2.10-r2
-    - BUILD_CONTRIB_MODULES=true
-    password:
-      from_secret: docker_password
-    repo: ovdnet/atheme
-    username:
-      from_secret: docker_user
-  volumes:
-  - name: docker-socket
-    path: /var/run/docker.sock
-
-volumes:
-- name: docker-socket
-  host:
-    path: /var/run/docker.sock
-
-...