Update .drone.yml

Remove `github_binary_release` stage

.drone.yml

@@ -15,27 +15,6 @@ steps:
       - name: docker
         path: /var/run/docker.sock
 
-  - name: github_binary_release
-    image: plugins/github-release
-    settings:
-      api_key:
-        from_secret: github_token
-      prerelease: true
-      checksum:
-        - sha256
-      checksum_file: CHECKSUMsum-amd64.txt
-      checksum_flatten: true
-      files:
-        - "dist/artifacts/*"
-    when:
-      instance:
-        - drone-publish.rancher.io
-      ref:
-        - refs/head/master
-        - refs/tags/*
-      event:
-        - tag
-
   - name: docker-publish-master
     image: plugins/docker
     settings: