Remove unnecessary changes

Author: vogelsgesang

libcxx/include/__exception/exception_ptr.h

@@ -41,9 +41,6 @@ _LIBCPP_PUSH_MACROS
 #    define _LIBCPP_EXPORTED_FROM_LIB_INLINEABLE _LIBCPP_HIDE_FROM_ABI
 #  endif
 
-_LIBCPP_DIAGNOSTIC_PUSH
-_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wgnu-inline-cpp-without-extern")
-
 #  if _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION
 
 namespace __cxxabiv1 {
@@ -223,8 +220,6 @@ _LIBCPP_HIDE_FROM_ABI exception_ptr make_exception_ptr(_Ep) _NOEXCEPT {
 }
 #  endif // _LIBCPP_HAS_EXCEPTIONS
 
-_LIBCPP_DIAGNOSTIC_POP
-
 #else // _LIBCPP_ABI_MICROSOFT
 
 class _LIBCPP_EXPORTED_FROM_ABI exception_ptr {

libcxx/src/exception.cpp

@@ -8,7 +8,6 @@
 
 #define _LIBCPP_ENABLE_CXX20_REMOVED_UNCAUGHT_EXCEPTION
 #define _LIBCPP_DISABLE_DEPRECATION_WARNINGS
-#define _LIBCPP_EMIT_CODE_FOR_EXCEPTION_PTR
 
 #include <exception>
 #include <new>

libcxx/src/support/runtime/exception_pointer_glibcxx.ipp

@@ -7,7 +7,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // libsupc++ does not implement the dependent EH ABI and the functionality
 // it uses to implement std::exception_ptr (which it declares as an alias of
 // std::__exception_ptr::exception_ptr) is not directly exported to clients. So

libcxx/test/tools/clang_tidy_checks/hide_from_abi.cpp

@@ -23,8 +23,7 @@ hide_from_abi::hide_from_abi(llvm::StringRef name, clang::tidy::ClangTidyContext
 void hide_from_abi::registerMatchers(clang::ast_matchers::MatchFinder* finder) {
   using namespace clang::ast_matchers;
 
-  auto has_hide_from_abi_attr =
-      anyOf(hasAttr(clang::attr::Visibility), hasAttr(clang::attr::AbiTag), hasAttr(clang::attr::GNUInline));
+  auto has_hide_from_abi_attr = anyOf(hasAttr(clang::attr::Visibility), hasAttr(clang::attr::AbiTag));
 
   finder->addMatcher(
       functionDecl(