Remove foo != NULL checks in xfa/src/fxbarcode.

xfa/src/fxbarcode/qrcode/BC_QRDetectorResult.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 // Original code is licensed as follows:
 /*
  * Copyright 2007 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ skipping 15 matching lines @@
 
 CBC_QRDetectorResult::CBC_QRDetectorResult(CBC_CommonBitMatrix* bits,
                                            CFX_PtrArray* points)
     : m_bits(bits), m_points(points) {}
 CBC_QRDetectorResult::~CBC_QRDetectorResult() {
   for (int32_t i = 0; i < m_points->GetSize(); i++) {
     delete (CBC_ResultPoint*)(*m_points)[i];
   }
   m_points->RemoveAll();
   delete m_points;
-  m_points = NULL;
-  if (m_bits != NULL) {
-    delete m_bits;
-  }
-  m_bits = NULL;
+  delete m_bits;
 }
 CBC_CommonBitMatrix* CBC_QRDetectorResult::GetBits() {
   return m_bits;
 }
 CFX_PtrArray* CBC_QRDetectorResult::GetPoints() {
   return m_points;
 }