Move CListener and CRealListener into their own files

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1924 726aef4b-f618-498e-8847-2d620e286838

znc.cpp

@@ -11,6 +11,7 @@
 #include "IRCSock.h"
 #include "Server.h"
 #include "User.h"
+#include "Listener.h"
 #include <pwd.h>
 #include <list>
 
@@ -2035,7 +2036,3 @@ void CZNC::LeakConnectUser(CConnectUserTimer *pTimer) {
 	if (m_pConnectUserTimer == pTimer)
 		m_pConnectUserTimer = NULL;
 }
-
-CRealListener::~CRealListener() {
-	m_pParent->SetRealListener(NULL);
-}