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

xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp

Index: xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp
diff --git a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp
index 6b9191bd563ba3b248f40e47c2847799b41fe767..7d8a8dccb49bacb495db6f7098ceb33e235b16ad 100644
--- a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp
+++ b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp
@@ -45,14 +45,8 @@ void CBC_DataMatrixBitMatrixParser::Init(CBC_CommonBitMatrix* bitMatrix,
                             m_mappingBitMatrix->GetHeight());
 }
 CBC_DataMatrixBitMatrixParser::~CBC_DataMatrixBitMatrixParser() {
-  if (m_mappingBitMatrix != NULL) {
-    delete m_mappingBitMatrix;
-  }
-  m_mappingBitMatrix = NULL;
-  if (m_readMappingMatrix != NULL) {
-    delete m_readMappingMatrix;
-  }
-  m_readMappingMatrix = NULL;
+  delete m_mappingBitMatrix;
+  delete m_readMappingMatrix;
 }
 CBC_DataMatrixVersion* CBC_DataMatrixBitMatrixParser::GetVersion() {
   return m_version;