Use default node capacity for STRtree

src/main/java/ch/geowerkstatt/ilivalidator/extensions/functions/PolylinesOverlapIoxPlugin.java

@@ -89,7 +89,7 @@ private static boolean hasEqualLinePart(List<CompoundCurve> lines) {
             return false;
         }
 
-        STRtree tree = new STRtree(lines.size());
+        STRtree tree = new STRtree();
         for (CompoundCurve line : lines) {
             tree.insert(line.getEnvelopeInternal(), line);
         }