Fix imports

Author: dr-jts

modules/core/src/main/java/org/locationtech/jts/operation/overlayng/OverlayUtil.java

@@ -22,7 +22,6 @@
 import org.locationtech.jts.geom.Point;
 import org.locationtech.jts.geom.Polygon;
 import org.locationtech.jts.geom.PrecisionModel;
-import org.locationtech.jts.geom.TopologyException;
 import org.locationtech.jts.util.Assert;
 
 /**