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

xfa/src/fxbarcode/qrcode/BC_QRCoderDecoder.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 2008 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ skipping 21 matching lines @@
 #include "xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h"
 
 CBC_QRCoderDecoder::CBC_QRCoderDecoder() {
   m_rsDecoder = NULL;
 }
 
 void CBC_QRCoderDecoder::Init() {
   m_rsDecoder = new CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256::QRCodeFild);
 }
 CBC_QRCoderDecoder::~CBC_QRCoderDecoder() {
-  if (m_rsDecoder != NULL) {
-    delete m_rsDecoder;
-  }
-  m_rsDecoder = NULL;
+  delete m_rsDecoder;
 }
 CBC_CommonDecoderResult* CBC_QRCoderDecoder::Decode(FX_BOOL* image,
                                                     int32_t width,
                                                     int32_t height,
                                                     int32_t& e) {
   CBC_CommonBitMatrix bits;
   bits.Init(width);
   for (int32_t i = 0; i < width; i++) {
     for (int32_t j = 0; j < height; j++) {
       if (image[i * width + j]) {
@@ skipping 65 matching lines @@
   for (int32_t i = 0; i < numCodewords; i++) {
     codewordsInts[i] = (int32_t)((*codewordBytes)[i] & 0xff);
   }
   int32_t numECCodewords = codewordBytes->GetSize() - numDataCodewords;
   m_rsDecoder->Decode(&codewordsInts, numECCodewords, e);
   BC_EXCEPTION_CHECK_ReturnVoid(e);
   for (int32_t k = 0; k < numDataCodewords; k++) {
     (*codewordBytes)[k] = (uint8_t)codewordsInts[k];
   }
 }