XWIKI-10249: Add an HTML5 validator to our build tools.

* Minor fix.

xwiki-platform-tools/xwiki-platform-tool-standards-validator/src/main/java/org/xwiki/validator/HTML5Validator.java

@@ -60,7 +60,6 @@ public List<ValidationError> validate()
         String schemaUrl = "http://s.validator.nu/html5-all.rnc";
 
         InputSource source = new InputSource(document);
-        validator = new SimpleDocumentValidator();
         try {
             validator.setUpMainSchema(schemaUrl, errorHandler);
             validator.setUpValidatorAndParsers(errorHandler, false, false);