Remove unneeded include directices, remove one remaining usage of qInfo

This MR contains cleaning up some overlooked things from implementing #137 (closed).

GUI/Models/JobItemUtils.cpp

@@ -18,8 +18,6 @@
 #include "Device/Histo/SimulationResult.h"
 #include "GUI/Models/DataItem.h"
 #include "GUI/Models/InstrumentItems.h"
-#include <QDebug>
-#include <QFileInfo>
 
 namespace {
 
@@ -57,7 +55,6 @@ void GUI::Model::JobItemUtils::updateDataAxes(DataItem* intensityItem,
     if (!instrumentItem) {
         // special case when reading old project files: project failed on load instrument
         // but we want to try to recover the rest.
-        qInfo() << "GUI::Model::JobItemUtils::updateDataAxes() -> Error. Absent instrument.";
         return;
     }