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/cppcodeformatter.cpp

@@ -29,12 +29,7 @@
 
 #include "cppcodeformatter.h"
 
-#include "cppcodestylesettingspage.h"
-
 #include <texteditor/basetextdocumentlayout.h>
-#include <texteditor/tabsettings.h>
-
-#include <cplusplus/Token.h>
 #include <cplusplus/Lexer.h>
 
 #include <utils/qtcassert.h>
@@ -42,7 +37,6 @@
 #include <QDebug>
 #include <QMetaEnum>
 #include <QTextDocument>
-#include <QTextCursor>
 #include <QTextBlock>
 
 using namespace CPlusPlus;