Make some apps uninstallable

src/freedombone-app-batman

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-VARIANTS='mesh'
+VARIANTS=''
 
 ENABLE_BATMAN="no"
 BATMAN_CELLID='any'

src/freedombone-app-blogstatic

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-VARIANTS='mesh'
+VARIANTS=''
 
 STATIC_BLOG_INSTALL_DIR=/etc/staticblog
 PELICAN_THEMES_REPO="https://github.com/getpelican/pelican-themes"

src/freedombone-app-librevault

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-VARIANTS='mesh'
+VARIANTS=''
 
 PROTOBUF_REPO="https://github.com/google/protobuf"
 PROTOBUF_COMMIT='b97a4a53cdd55be74c30badefeb132a091764f53'

src/freedombone-app-zeronet

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-VARIANTS='mesh'
+VARIANTS=''
 
 MESH_INSTALL_DIR=/var/lib