*rm unused kde4support headers found via docker build.

kdiff3fileitemactionplugin/kdiff3fileitemaction.cpp

@@ -20,7 +20,6 @@
 
 #include "kdiff3fileitemaction.h"
 
-#include <kstandarddirs.h>
 #include <QAction>
 #include <QMenu>
 #include <QUrl>

src/main.cpp

@@ -20,7 +20,6 @@
 #include <KAboutData>
 #include <KLocalizedString>
 #include "kdiff3_shell.h"
-#include <kstandarddirs.h>
 #include "version.h"
 #include <QTextCodec>
 #include <QFile>

src/optiondialog.cpp

@@ -52,7 +52,6 @@
 #include "smalldialogs.h"
 
 #ifndef KREPLACEMENTS_H
-#include <kglobalsettings.h>
 #include <KConfigGroup>
 #include <QDialogButtonBox>
 #include <QPushButton>

src/smalldialogs.cpp

@@ -37,7 +37,6 @@
 #include <QFileDialog>
 
 #include <klocalizedstring.h>
-#include <kdebug.h>
 
 // OpenDialog **************************************************************