Remove workflow for fdroid as per Vinfall recommendation

.github/workflows/fdroid-changelog.yml

@@ -1,32 +0,0 @@
-# Dump the changelog necessary for F-Droid
-
-name: "F-Droid Changelog"
-
-on:
-  push:
-    tags:
-      - 'v*'
-
-permissions:
-  contents: read
-
-jobs:
-  changelog:
-    permissions:
-      contents: write  # for Git to git push
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          ref: 'master'
-      - name: Dump Changelog
-        shell: bash
-        run: |
-          # ${GITHUB_REF_NAME:1} removes the leading "v" letter in tag
-          cat CHANGES.md | sed --silent "/\# ${GITHUB_REF_NAME:1}/,/\# /p" | head --lines -2 > default.txt
-          git config user.name github-actions
-          git config user.email github-actions@github.com
-          git add .
-          git commit -m "Dump changes to default.txt"
-          git push origin HEAD:master