WIP: remove the old database abstraction layer

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

while here:
- remove: TextStream, SLog, TexTextStream

winixd/core/users.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2008-2021, Tomasz Sowa
+ * Copyright (c) 2008-2024, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -40,7 +40,6 @@
 #include "ugcontainer.h"
 #include "lastcontainer.h"
 #include "cur.h"
-#include "db/db.h"
 #include "models/winixmodel.h"
 
 
@@ -73,7 +72,7 @@ public:
 //	void SetSessionManager(SessionManager * sm);
 
 	void Clear();
-	void ReadUsers(Db * db);
+	void ReadUsers();
 	bool AddUser(const User & user);
 	bool IsUser(const std::wstring & name);
 	User * GetUser(long user_id);
@@ -84,7 +83,7 @@ public:
 	SizeType Size();
 	bool Remove(long user_id);
 
-	bool   LoginUser(long user_id, bool remember_me, bool use_ses_log = false);
+	bool   LoginUser(long user_id, bool remember_me);
 	size_t LogoutUser(long user_id);
 	void   LogoutCurrentUser();
 
@@ -104,8 +103,8 @@ private:
 	//SessionManager * session_manager;
 	long how_many_logged;
 
-	bool LoginUserCheckSession(bool use_ses_log);
-	User * LoginUserCheckStatus(long user_id, bool use_ses_log);
+	bool LoginUserCheckSession();
+	User * LoginUserCheckStatus(long user_id);
 
 };