Utils lib: Remove unneeded includes from cpp files

It's a result of a team work consisting of yellow triangle and me.

Change-Id: I8b4812766da70e0785ae71bf0cb71357379e2514
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/libs/utils/pathchooser.cpp

@@ -31,9 +31,7 @@
 #include "macroexpander.h"
 #include "qtcassert.h"
 #include "qtcprocess.h"
-#include "theme/theme.h"
 
-#include <QDebug>
 #include <QFileDialog>
 #include <QHBoxLayout>
 #include <QMenu>