Got rid of test using a deprecated method

visualiser/src/test/java/seng302/Model/RaceXMLTest.java

@@ -86,7 +86,6 @@ public class RaceXMLTest {
             assertTrue(raceXMLReader.getLeewardPt2() != null);
             assertTrue(raceXMLReader.getWindwardPt1() != null);
             assertTrue(raceXMLReader.getWindwardPt2() != null);
-            assertTrue(raceXMLReader.getMark() != null);
             assertTrue(raceXMLReader.getBoundary().size() == 11);
         } catch (Exception e) {
             e.printStackTrace();