WIP: remove the old database abstraction layer

remove such classes:
- DbBase
- DbConn
- DbTextStream
- Db

while here:
- remove: TextStream, SLog, TexTextStream

winixd/functions/login.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2010-2021, Tomasz Sowa
+ * Copyright (c) 2010-2024, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -69,8 +69,7 @@ public:
 	bool CannotLoginFrom(const IPBan & ipban);
 
 	bool CheckUserPass(const std::wstring & login, const std::wstring & password, long & user_id);
-	bool LoginUser(const std::wstring & login, const std::wstring & password, bool remember_me,
-				   bool use_ses_log = false, bool check_abuse = false);
+	bool LoginUser(const std::wstring & login, const std::wstring & password, bool remember_me, bool check_abuse = false);
 
 
 private: