Clean headers in CppTools.

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

Change-Id: Ic8464ea084ca1ab401e9f4a7d0183b92b4038902
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/cpptools/cpptoolseditorsupport.h

@@ -30,14 +30,9 @@
 #ifndef CPPTOOLSEDITORSUPPORT_H
 #define CPPTOOLSEDITORSUPPORT_H
 
-#include <cplusplus/CppDocument.h>
-
 #include <QObject>
 #include <QPointer>
 #include <QFuture>
-#include <QScopedPointer>
-#include <QSharedPointer>
-#include <QTextCursor>
 
 QT_BEGIN_NAMESPACE
 class QTimer;