remove wxSocketManager::CreateSocket() function, we don't need to have different wxSocketImpl implementation for the same platform, all the differences between console and GUI applications are abstracted by wxSocketManager::Install/Uninstall_Callback() methods

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57000 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/private/sockunix.h

@@ -141,12 +141,6 @@ public:
     virtual bool OnInit() { return true; }
     virtual void OnExit() { }
 
-    // allocate/free the storage we need
-    virtual wxSocketImpl *CreateSocket(wxSocketBase& wxsocket)
-    {
-        return new wxSocketImplUnix(wxsocket);
-    }
-
 protected:
     // identifies either input or output direction
     //