Fix xml error

Author: battye

phpunit.xml

@@ -1,15 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <phpunit backupGlobals="true"
-         backupStaticAttributes="true"
          colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         syntaxCheck="false"
-         verbose="true"
          bootstrap="tests/bootstrap.php"
          >
     <testsuites>