Mute GeoDistanceIT while fixing

core/src/test/java/org/elasticsearch/search/sort/GeoDistanceIT.java

@@ -575,6 +575,7 @@ public class GeoDistanceIT extends ESIntegTestCase {
         return randomDouble() * 180 - 90;
     }
 
+    @AwaitsFix(bugUrl = "http://github.com/elastic/elasticsearch/issues/19263")
     public void testDuelOptimizations() throws Exception {
         Version version = VersionUtils.randomVersionBetween(random(), Version.V_2_0_0, Version.CURRENT);
         Settings settings = Settings.builder().put(IndexMetaData.SETTING_VERSION_CREATED, version).build();