[upstreaming] Remove unused and duplicate ClangASTContext constructor

Author: Teemperor

lldb/include/lldb/Symbol/ClangASTContext.h

@@ -61,8 +61,6 @@ class ClangASTContext : public TypeSystem {
   /// \param existing_ctxt An existing ASTContext.
   explicit ClangASTContext(clang::ASTContext &existing_ctxt);
 
-  ClangASTContext(clang::ASTContext *ast_ctx);
-
   ~ClangASTContext() override;
 
   void Finalize() override;

lldb/source/Symbol/ClangASTContext.cpp

@@ -548,15 +548,6 @@ ClangASTContext::ClangASTContext(ASTContext &existing_ctxt)
   GetASTMap().Insert(&existing_ctxt, this);
 }
 
-ClangASTContext::ClangASTContext(clang::ASTContext *ast_ctx)
-    : TypeSystem(TypeSystem::eKindClang), m_target_triple(), m_ast_up(ast_ctx),
-      m_language_options_up(), m_source_manager_up(), m_diagnostics_engine_up(),
-      m_target_options_rp(), m_target_info_up(), m_identifier_table_up(),
-      m_selector_table_up(), m_builtins_up(), m_callback_tag_decl(nullptr),
-      m_callback_objc_decl(nullptr), m_callback_baton(nullptr),
-      m_pointer_byte_size(0), m_ast_owned(false) {}
-
-//----------------------------------------------------------------------
 // Destructor
 ClangASTContext::~ClangASTContext() { Finalize(); }