XML Parser: Fix how validation is detected

Previously it was ignoring the return value, so on some
implementations like Android, it was trying to incorrectly
use validation even though it wasn't actually supported.

Bug: 27552463
Change-Id: I5872f026e4eef957a0a91c8598044152de71404a
diff --git a/src/main/java/org/testng/xml/XMLParser.java b/src/main/java/org/testng/xml/XMLParser.java
index 9b43997..461a9eb 100644
--- a/src/main/java/org/testng/xml/XMLParser.java
+++ b/src/main/java/org/testng/xml/XMLParser.java
@@ -95,8 +95,7 @@
    */
   private static boolean supportsValidation(SAXParserFactory spf) {
     try {
-      spf.getFeature("http://xml.org/sax/features/validation");
-      return true;
+      return spf.getFeature("http://xml.org/sax/features/validation");
     }
     catch(Exception ex) {
       return false;