Revert "feat(packaging): add Debian (.deb) build via nfpm with systemd unit (…" (#7582)

This reverts commit 6bb879ed03.

packaging/README.md

@@ -1,89 +0,0 @@
-# Etherpad Debian / RPM packaging
-
-Produces native `.deb` (and, with the same manifest, `.rpm` / `.apk`)
-packages for Etherpad using [nfpm](https://nfpm.goreleaser.com).
-
-## Layout
-
-```
-packaging/
-  nfpm.yaml                   # nfpm package manifest
-  bin/etherpad-lite           # /usr/bin launcher
-  scripts/                    # preinst / postinst / prerm / postrm
-  systemd/etherpad-lite.service
-  systemd/etherpad-lite.default
-  etc/settings.json.dist      # populated in CI from settings.json.template
-```
-
-Built artefacts land in `./dist/`.
-
-## Building locally
-
-Prereqs: Node 22, pnpm 10+, nfpm.
-
-```sh
-pnpm install --frozen-lockfile
-pnpm run build:etherpad
-
-# Stage the tree the way CI does:
-STAGE=staging/opt/etherpad-lite
-mkdir -p "$STAGE"
-cp -a src bin package.json pnpm-workspace.yaml README.md LICENSE \
-      node_modules "$STAGE/"
-printf 'packages:\n  - src\n  - bin\n' > "$STAGE/pnpm-workspace.yaml"
-cp settings.json.template packaging/etc/settings.json.dist
-
-VERSION=$(node -p "require('./package.json').version") \
-ARCH=amd64 \
-    nfpm package --packager deb -f packaging/nfpm.yaml --target dist/
-```
-
-## Installing
-
-```sh
-sudo apt install ./dist/etherpad-lite_2.6.1_amd64.deb
-sudo systemctl start etherpad-lite
-curl http://localhost:9001/health
-```
-
-`apt` will pull in `nodejs (>= 20)`; on Ubuntu 22.04 add NodeSource first:
-
-```sh
-curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
-```
-
-## Configuration
-
-- Edit `/etc/etherpad-lite/settings.json`, then
-  `sudo systemctl restart etherpad-lite`.
-- Environment overrides: `/etc/default/etherpad-lite`.
-- Logs: `journalctl -u etherpad-lite -f`.
-- Data (dirty-DB default): `/var/lib/etherpad-lite/`.
-
-## Upgrading
-
-`dpkg --install etherpad-lite_<new>.deb` (or `apt install`) replaces the
-app tree under `/opt/etherpad-lite` while preserving
-`/etc/etherpad-lite/*` and `/var/lib/etherpad-lite/*`. The service is
-restarted automatically.
-
-## Removing
-
-- `sudo apt remove etherpad-lite` — keeps config and data.
-- `sudo apt purge etherpad-lite` — also removes config, data, and the
-  `etherpad` system user.
-
-## Publishing to an APT repository (follow-up)
-
-Out of scope here — requires credentials and ownership decisions.
-Recipes once a repo is picked:
-
-- **Cloudsmith** (easiest, free OSS tier):
-  `cloudsmith push deb ether/etherpad-lite/any-distro/any-version dist/*.deb`
-- **Launchpad PPA**: requires signed source packages (a `debian/` tree),
-  which nfpm does not produce — use `debuild` separately.
-- **Self-hosted reprepro**:
-  `reprepro -b /srv/apt includedeb stable dist/*.deb`
-
-Wire the chosen option into `.github/workflows/deb-package.yml` after
-the `release` job.