ci: remove moonlight discord release announcement (#5099)

.github/workflows/release-notifier-moonlight.yml

@@ -1,39 +0,0 @@
----
-name: Release Notifications (Moonlight)
-permissions: {}
-
-on:
-  release:
-    types:
-      - released  # this triggers when a release is published, but does not include prereleases or drafts
-
-jobs:
-  discord:
-    if: github.repository_owner == 'LizardByte'
-    runs-on: ubuntu-latest
-    permissions: {}
-    steps:
-      - name: Check if latest GitHub release
-        id: check-release
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3  # v9.0.0
-        with:
-          script: |
-            const latestRelease = await github.rest.repos.getLatestRelease({
-              owner: context.repo.owner,
-              repo: context.repo.repo
-            });
-
-            core.setOutput('isLatestRelease', latestRelease.data.tag_name === context.payload.release.tag_name);
-
-      - name: discord
-        if: steps.check-release.outputs.isLatestRelease == 'true'
-        uses: sarisia/actions-status-discord@eb045afee445dc055c18d3d90bd0f244fd062708  # v1.16.0
-        with:
-          avatar_url: ${{ vars.ORG_LOGO_URL }}256
-          color: 0x${{ vars.COLOR_HEX_GREEN }}
-          description: ${{ github.event.release.body }}
-          nodetail: true
-          nofail: false
-          title: ${{ github.event.repository.name }} ${{ github.ref_name }} Released
-          username: ${{ vars.DISCORD_USERNAME }}
-          webhook: ${{ secrets.DISCORD_RELEASE_WEBHOOK_MOONLIGHT }}