Do not check pointers before deleting them.

xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp

Index: xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
diff --git a/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp b/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
index 716b6c17de79aac7b732b4cb67546e7a68898ff2..fc87785d5c652afde1220ea92971be546fc0ae69 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
+++ b/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
@@ -93,14 +93,10 @@ CFX_ByteString CBC_QRCodeReader::Decode(CBC_BinaryBitmap* image, int32_t& e) {
   return bs;
 }
 void CBC_QRCodeReader::ReleaseAll() {
-  if (CBC_ReedSolomonGF256::QRCodeFild) {
-    delete CBC_ReedSolomonGF256::QRCodeFild;
-    CBC_ReedSolomonGF256::QRCodeFild = NULL;
-  }
-  if (CBC_ReedSolomonGF256::DataMatrixField) {
-    delete CBC_ReedSolomonGF256::DataMatrixField;
-    CBC_ReedSolomonGF256::DataMatrixField = NULL;
-  }
+  delete CBC_ReedSolomonGF256::QRCodeFild;
+  CBC_ReedSolomonGF256::QRCodeFild = nullptr;
+  delete CBC_ReedSolomonGF256::DataMatrixField;
+  CBC_ReedSolomonGF256::DataMatrixField = nullptr;
   CBC_QRCoderMode::Destroy();
   CBC_QRCoderErrorCorrectionLevel::Destroy();
   CBC_QRDataMask::Destroy();