qt4: remove dummy error messages

modules/gui/qt4/main_interface.cpp

@@ -441,7 +441,6 @@ void MainInterface::handleMainUi( QSettings *settings )
         vlc_value_t val;
         val.p_address = this;
         var_Set( p_intf, "window_widget", val );
-        msg_Err( p_intf, "window_widget = %p", this);
     }
 
     /* Finish the sizing */

modules/gui/qt4/qt4.cpp

@@ -230,10 +230,7 @@ static int Open( vlc_object_t *p_this )
 
     p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
     if( !p_intf->p_sys )
-    {
-        msg_Err( p_intf, "Out of memory" );
         return VLC_ENOMEM;
-    }
     memset( p_intf->p_sys, 0, sizeof( intf_sys_t ) );
 
     p_intf->pf_run = Run;