fixing a potential issue with 3 points near each other

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/mapper/FeatureMapper.java

@@ -189,11 +189,7 @@ public class FeatureMapper extends FeatureWalker {
 			if (nodesInRange.isEmpty()) {
 				tree.add(v);
 			} else {
-				if (nodesInRange.size() != 1) {
-					throw new IllegalStateException(
-							"Found more than one vertex in range of " + v + " this should never happen here");
-				}
-				// replace other vertex with neighboring one
+				// replace other vertex with any neighboring one
 				Vertex original = nodesInRange.get(0);
 				lr.setVertex(i, original);
 			}