[clang-doc] remove useless code

Author: PeterChou1

clang-tools-extra/clang-doc/Representation.cpp

@@ -266,8 +266,6 @@ void EnumInfo::merge(EnumInfo &&Other) {
     Scoped = Other.Scoped;
   if (Members.empty())
     Members = std::move(Other.Members);
-  if (Other.HasComments || HasComments)
-    HasComments = true;
   SymbolInfo::merge(std::move(Other));
 }
 

clang-tools-extra/clang-doc/Representation.h

@@ -445,8 +445,6 @@ struct EnumInfo : public SymbolInfo {
 
   // Indicates whether this enum is scoped (e.g. enum class).
   bool Scoped = false;
-  // Indicates whether or not enum members have comments attached
-  bool HasComments = false;
 
   // Set to nonempty to the type when this is an explicitly typed enum. For
   //   enum Foo : short { ... };