Remove useless binary and with CONFIG_ITEM

If the high nibble is set, the type is item type and the low nibble is
necessarily zero.

modules/gui/qt4/components/complete_preferences.cpp

@@ -456,7 +456,7 @@ AdvPrefsPanel::AdvPrefsPanel( intf_thread_t *_p_intf, QWidget *_parent,
             boxlayout = new QGridLayout();
         }
         /* Only one hotkey control */
-        if( (p_item->i_type & CONFIG_ITEM) == CONFIG_ITEM_KEY )
+        if( p_item->i_type == CONFIG_ITEM_KEY )
         {
             if( has_hotkey )
                 continue;

modules/gui/qt4/components/extended_panels.cpp

@@ -428,7 +428,7 @@ void ExtVideo::initComboBoxItems( QObject *widget )
                                                  qtu( option ) );
     if( p_item )
     {
-        int i_type = p_item->i_type & CONFIG_ITEM;
+        int i_type = p_item->i_type;
         for( int i_index = 0; i_index < p_item->i_list; i_index++ )
         {
             if( i_type == CONFIG_ITEM_INTEGER