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

xfa/src/fxbarcode/datamatrix/BC_DataMatrixVersion.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 37 matching lines @@
   int32_t total = 0;
   int32_t ecCodewords = ecBlocks->GetECCodewords();
   const CFX_PtrArray& ecbArray = ecBlocks->GetECBlocks();
   for (int32_t i = 0; i < ecbArray.GetSize(); i++) {
     total += ((ECB*)ecbArray[i])->GetCount() *
              (((ECB*)ecbArray[i])->GetDataCodewords() + ecCodewords);
   }
   m_totalCodewords = total;
 }
 CBC_DataMatrixVersion::~CBC_DataMatrixVersion() {
-  if (m_ecBlocks != NULL) {
-    delete m_ecBlocks;
-  }
-  m_ecBlocks = NULL;
+  delete m_ecBlocks;
 }
 int32_t CBC_DataMatrixVersion::GetVersionNumber() {
   return m_versionNumber;
 }
 int32_t CBC_DataMatrixVersion::GetSymbolSizeRows() {
   return m_symbolSizeRows;
 }
 int32_t CBC_DataMatrixVersion::GetSymbolSizeColumns() {
   return m_symbolSizeColumns;
 }
@@ skipping 91 matching lines @@
     if (((CBC_DataMatrixVersion*)((*VERSIONS)[i]))->m_symbolSizeRows ==
             numRows &&
         ((CBC_DataMatrixVersion*)((*VERSIONS)[i]))->m_symbolSizeColumns ==
             numColumns) {
       return (CBC_DataMatrixVersion*)(*VERSIONS)[i];
     }
   }
   e = BCExceptionNotFound;
   return NULL;
 }