Remove support for RPM builds

.github/workflows/ci.yaml

@@ -76,27 +76,6 @@ jobs:
         run: |
           flatpak-builder-lint appstream meta/com.nitrokey.nitrokey-app2.metainfo.xml || true
           echo "FIXME: currently disabled" 
-
-  check-version-accordance-rpm-spec:
-    name: Check for version accordance with RPM specification file
-    runs-on: ubuntu-latest
-    container: fedora:latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-      - name: Install required packages
-        run: |
-          dnf makecache
-          dnf install -y gcc libffi-devel make python python-pip python3-devel rpm-build systemd-devel which
-          pip install poetry
-      - name: Create virtual environment
-        run: make init
-      - name: Check versions
-        shell: bash
-        run: |
-          PACKAGE_VERSION=$(poetry version --short)
-          RPM_VERSION=$(rpmspec -q --qf "%{version}" ci-scripts/linux/rpm/nitrokey-app2.spec)
-          if [ $PACKAGE_VERSION == $RPM_VERSION ]; then exit 0; else exit 1; fi
   check-version-accordance-flatpak-metadata:
     name: Check for version accordance with Flatpak metadata file
     runs-on: ubuntu-latest

docs/release.md

@@ -5,7 +5,6 @@ Follow the steps below meticulously to avoid a broken release.
 1. Adapt version information.
    The CI pipeline will fail if the version strings in the files below do not match.
    * `pyproject.toml` 
-   * `ci-scripts/linux/rpm/nitrokey-app2.spec` 
    * Add flatpak meta-data in `meta/com.nitrokey.nitrokey-app2.metainfo.xml`, 
      like this: `<release version="2.3" date="2024-04-19"/>` 
      * The latest release should be on top of this list.
@@ -31,6 +30,6 @@ Follow the steps below meticulously to avoid a broken release.
    Open the respective PyPI release job.
    Click the *Review deployments* button.
    Set the checkbox "pypi" and click *Approve and deploy*.
-6. Please mind that Flatpak and RPM COPR builds need to be triggered manually.
+6. Please mind that the Flatpak build needs to be triggered manually.
 
 The release is now complete.