Remove community slack announcement (#532)

Author: pdabelf5

.github/workflows/ci.yml

@@ -112,5 +112,4 @@ jobs:
           args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_COMMUNITY }}
         if: ${{ github.ref_type == 'tag' }}

.goreleaser.yaml

@@ -5,11 +5,5 @@ builds:
 changelog:
   disable: true
 
-announce:
-  slack:
-    enabled: true
-    channel: "#announcements"
-    message_template: "NGINX Plus Go Client {{ .Tag }} is out! Check it out: {{ .ReleaseURL }}"
-
 milestones:
   - close: true