WIP: remove the old database abstraction layer

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

while here:
- remove: TextStream, SLog, TexTextStream

winixd/functions/env.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2012-2021, Tomasz Sowa
+ * Copyright (c) 2012-2024, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -66,8 +66,8 @@ private:
 	pt::Space space;
 	UserWrapper user_wrapper;
 
-	bool EditAdminEnv(const std::wstring & env_str, bool use_ses_log = false);
-	bool EditEnv(const std::wstring & env_str, bool use_ses_log = false);
+	bool EditAdminEnv(const std::wstring & env_str);
+	bool EditEnv(const std::wstring & env_str);
 
 	bool Parse(const std::wstring & env_str);
 	void SaveEnv();