clean unused import from Fozzie

firestar/src/main/java/Fozzie.java

@@ -16,7 +16,6 @@
  *     along with this program.  If not, see https://www.gnu.org/licenses/.
  */
 
-import javax.imageio.ImageIO;
 import javax.swing.*;
 import java.awt.*;
 import java.io.*;