Revert "Qt: save volume on exit"

This reverts commit 47e8817a.

modules/gui/qt4/qt4.cpp

@@ -507,17 +507,6 @@ static void *Thread( void *obj )
     /* Save the path */
     getSettings()->setValue( "filedialog-path", p_intf->p_sys->filepath );
 
-    /* Save volume on exit */
-    audio_volume_t i_volume;
-    module_config_t *volconf;
-    if ( var_InheritBool( p_intf, "qt-autosave-volume" ) )
-        aout_VolumeGet( p_intf, &i_volume );
-    else
-        i_volume = config_GetInt( p_intf, "qt-startvolume" );
-    config_PutInt( p_intf, "volume", i_volume );
-    volconf = config_FindConfig( VLC_OBJECT(p_intf), "volume" );
-    if ( volconf ) volconf->b_autosave = true;
-
     /* Delete the configuration. Application has to be deleted after that. */
     delete p_intf->p_sys->mainSettings;