remove print, the stl load and export in JCSG are good enough

Author: madhephaestus

src/main/java/eu/mihosoft/vrl/v3d/ext/imagej/STLLoader.java

@@ -49,9 +49,9 @@ public STLLoader() {
 	 *             Signals that an I/O exception has occurred.
 	 */
 	public ArrayList<Polygon> parse(File f) throws IOException {
-		if (CSG.getDefaultOptionType() == OptType.Manifold3d) {
-			new RuntimeException("Manifold3d STL import not implemented yet").printStackTrace();
-		}
+//		if (CSG.getDefaultOptionType() == OptType.Manifold3d) {
+//			new RuntimeException("Manifold3d STL import not implemented yet").printStackTrace();
+//		}
 		ArrayList<Polygon> polygons = new ArrayList<>();
 
 		// determine if this is a binary or ASCII STL