fix(ci): remove github sync via drone

.drone.yml

@@ -118,59 +118,3 @@ trigger:
   event:
     exclude:
     - tag
-
----
-kind: pipeline
-type: kubernetes
-name: sync
-
-clone:
-  disable: true
-
-node_selector:
-  kubernetes.io/arch: amd64
-
-steps:
-- name: clone
-  image: git.cryptic.systems/volker.raschek/git:1.2.1
-
-- name: github
-  image: docker.io/appleboy/drone-git-push:latest
-  resources:
-    limits:
-      cpu: 50
-      memory: 25M
-  settings:
-    branch: master
-    remote: ssh://git@github.com/volker-raschek/dyndns-client.git
-    force: true
-    ssh_key:
-      from_secret: ssh_key
-
-- name: email-notification
-  environment:
-    SMTP_FROM_ADDRESS:
-      from_secret: smtp_from_address
-    SMTP_FROM_NAME:
-      from_secret: smtp_from_name
-    SMTP_HOST:
-      from_secret: smtp_host
-    SMTP_USERNAME:
-      from_secret: smtp_username
-    SMTP_PASSWORD:
-      from_secret: smtp_password
-  image: git.cryptic.systems/volker.raschek/drone-email:0.1.1
-  resources:
-    limits:
-      cpu: 150
-      memory: 150M
-  when:
-    status:
-    - changed
-    - failure
-
-trigger:
-  event:
-  - push
-  repo:
-  - volker.raschek/dyndns-client