Make server GUI default to "None" directory if not set.

Fixes jamulussoftware#2441. If the directory is not set in the ini file or the command line,
the server should not automatically register to All Genres 1. It should
default to not registering until the user actually chooses a directory.

src/settings.cpp

@@ -829,9 +829,9 @@ directoryAddress = GetIniSetting ( IniXMLDocument, "server", "centralservaddr",
 
     // directory type
     // CServerListManager defaults to AT_NONE
-    // Server GUI defaults to AT_DEFAULT
+    // Server GUI also defaults to AT_NONE (previously AT_DEFAULT, when registration was controlled by a checkbox)
     // Because type could be AT_CUSTOM, it has to be set after the address to avoid multiple registrations
-    EDirectoryType directoryType = AT_DEFAULT;
+    EDirectoryType directoryType = AT_NONE;
 
     // if command line is set, use it
     if ( CommandLineOptions.contains ( "--centralserver" ) || CommandLineOptions.contains ( "--directoryserver" ) )
@@ -840,15 +840,6 @@ directoryAddress = GetIniSetting ( IniXMLDocument, "server", "centralservaddr",
     }
     else
     {
-        // clang-format off
-// TODO compatibility to old version < 3.8.2
-// if "servlistenabled" exists and is false, set directory type to AT_NONE
-if ( GetFlagIniSet ( IniXMLDocument, "server", "servlistenabled", bValue ) && !bValue )
-{
-    directoryType = AT_NONE;
-}
-        // clang-format on
-
         // clang-format off
 // TODO compatibility to old version < ?????
 // only the case that manual was set in old ini must be considered