remove libjffi stuff from appimage

.github/workflows/appimage.yml

@@ -111,12 +111,6 @@ jobs:
           ln -s usr/share/icons/hicolor/scalable/apps/org.cryptomator.Cryptomator.svg Cryptomator.AppDir/.DirIcon
           ln -s usr/share/applications/org.cryptomator.Cryptomator.desktop Cryptomator.AppDir/Cryptomator.desktop
           ln -s bin/cryptomator.sh Cryptomator.AppDir/AppRun
-      - name: Extract libjffi.so # workaround for https://github.com/cryptomator/cryptomator-linux/issues/27
-        run: |
-          JFFI_NATIVE_JAR=`ls lib/app/ | grep -e 'jffi-[1-9]\.[0-9]\{1,2\}.[0-9]\{1,2\}-native.jar'`
-          ${JAVA_HOME}/bin/jar -xf lib/app/${JFFI_NATIVE_JAR} /jni/x86_64-Linux/
-          mv jni/x86_64-Linux/* lib/app/libjffi.so
-        working-directory: Cryptomator.AppDir
       - name: Download AppImageKit
         run: |
           curl -L https://github.com/AppImage/AppImageKit/releases/download/13/appimagetool-x86_64.AppImage -o appimagetool.AppImage