Fix

Signed-off-by: Jiang, Zhiwei <zhiwei.jiang@intel.com>

Author: zhiweij1

clang/lib/DPCT/RuleInfra/ExprAnalysis.cpp

@@ -25,7 +25,6 @@
 #include "clang/AST/StmtCXX.h"
 #include "clang/AST/TypeLoc.h"
 #include "llvm/Support/raw_ostream.h"
-#include <optional>
 
 extern clang::tooling::UnifiedPath DpctInstallPath;
 namespace clang {

clang/lib/DPCT/RuleInfra/ExprAnalysis.h

@@ -730,9 +730,6 @@ class ExprAnalysis {
   std::string RewritePrefix;
   std::string RewritePostfix;
   std::set<HelperFeatureEnum> HelperFeatureSet;
-  std::optional<std::pair<std::string /*constexpr definitaion*/,
-                          unsigned /*constexpr offset in original str*/>>
-      ConstExprExpansionInfo = std::nullopt;
 
 public:
   bool IsAnalyzingCtTypeInfo = false;