Removed local Drone CI config

.drone.yml

@@ -1,29 +0,0 @@
-workspace:
-  base: /go
-  path: src/github.com/prologic/msgbus
-
-pipeline:
-  build:
-    image: golang:latest
-    commands:
-      - make build
-
-  docker:
-    image: plugins/docker
-    repo: r.mills.io/prologic/msgbus
-    registry: r.mills.io
-    secrets: [ docker_username, docker_password ]
-
-  notify:
-    image: drillster/drone-email
-    host: mail.mills.io
-    from: drone@mills.io
-    skip_verify: true 
-    when:
-      status: [ changed, failure ]
-
-secrets:
-  registry_username:
-    external: true
-  registry_password:
-    external: true