Remove maildir for tox

src/freedombone

       echo "File not found $INSTALL_DIR/toxcore/other/bootstrap_daemon/tox-bootstrapd.conf"
       exit 476835
   fi
+  # remove Maildir
+  if [ -d /var/lib/tox-bootstrapd/Maildir ]; then
+      rm -rf /var/lib/tox-bootstrapd/Maildir
+  fi
 
   # create configuration file
   echo "port = $TOX_PORT" > /etc/tox-bootstrapd.conf