This fixes a performance regression introduced by 8b3944e1341baaf693927c8b758851d2dbba725a ("ntdll: Only allocate debug info in critical sections with RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO.").
Critical section was using a fallback semaphore path if no debug info is present. That was apparently to support MakeCriticalSectionGlobal() which was deprecated and removed from kernel32 exports around Win2000.