WIP: remove the old database abstraction layer

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

while here:
- remove: TextStream, SLog, TexTextStream

winixd/functions/adduser.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
@@ -54,8 +54,8 @@ public:
 	void MakePost();
 	void MakeGet();
 
-	bool IsLoginCorrect(const std::wstring & login, bool use_ses_log = false);
-	bool IsEmailCorrect(const std::wstring & email, bool use_ses_log = false);
+	bool IsLoginCorrect(const std::wstring & login);
+	bool IsEmailCorrect(const std::wstring & email);
 
 	bool HasLoginCorrectChars(const std::wstring & login);
 	bool AddNewUser(User & user, const std::wstring & pass);
@@ -64,8 +64,7 @@ public:
 					const std::wstring & pass,
 					const std::wstring & email,
 					bool autoactivate,
-					bool try_login,
-					bool use_ses_log = false);
+					bool try_login);
 
 private: