Clean headers in Designer.

Ran script to remove inludes on a trial-and-error basis and
manually corrected it.

Change-Id: Ia97b5bd9e4496cd824f35c5fda8ccf0db9af471c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/plugins/designer/designercontext.cpp

@@ -28,7 +28,6 @@
 ****************************************************************************/
 
 #include "designercontext.h"
-#include "designerconstants.h"
 #include "formeditorw.h"
 
 #include <QDesignerFormEditorInterface>
@@ -41,7 +40,6 @@
 
 #include <QWidget>
 #include <QDebug>
-#include <QSettings>
 
 enum { debug = 0 };