diff --git a/src/docpart.cpp b/src/docpart.cpp
deleted file mode 100644
index bbfaea44..00000000
--- a/src/docpart.cpp
+++ /dev/null
@@ -1,129 +0,0 @@
-/*************************************************************************************************
-    begin                : Sun Jul 29 2001
-    copyright            : (C) 2001 - 2003 by Brachet Pascal
-                               2004 by Jeroen Wijnhout (Jeroen.Wijnhout@kdemail.net)
-                               2008 - 2019 by Michel Ludwig (michel.ludwig@kdemail.net)
- *************************************************************************************************/
-
-/***************************************************************************
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- ***************************************************************************/
-
-#include "docpart.h"
-
-#include <KConfig>
-#include <KMessageBox>
-#include <KMimeTypeTrader>
-#include <KStandardAction>
-#include <KRun>
-#include <KHTMLView>
-
-#include <QMimeDatabase>
-#include <QMimeType>
-
-#include "kiledebug.h"
-#include "utilities.h"
-
-DocumentationViewer::DocumentationViewer(QWidget *parent) : KHTMLPart(parent, parent, BrowserViewGUI)
-{
-    m_hpos = 0;
-    QString rc = KileUtilities::locate(QStandardPaths::AppDataLocation, "docpartui.rc");
-    setXMLFile(rc);
-    KStandardAction::back(this, SLOT(back()), (QObject*)actionCollection());
-    KStandardAction::forward(this, SLOT(forward()), (QObject*)actionCollection());
-    KStandardAction::home(this, SLOT(home()), (QObject*)actionCollection());
-}
-
-DocumentationViewer::~DocumentationViewer()
-{
-}
-
-bool DocumentationViewer::urlSelected(const QString &url, int button, int state, const QString &_target, const KParts::OpenUrlArguments &args, const KParts::BrowserArguments & /* browserArgs */)
-{
-    QUrl cURL = completeURL(url);
-    QMimeDatabase db;
-    QString mime = db.mimeTypeForUrl(cURL).name();
-
-    //load this URL in the embedded viewer if KHTML can handle it, or when mimetype detection failed
-    KService::Ptr service = KService::serviceByDesktopName("khtml");
-    if (db.mimeTypeForUrl(cURL).isDefault() || (service && service->hasServiceType(mime))) {
-        KHTMLPart::urlSelected(url, button, state, _target, args);
-        openUrl(cURL);
-        addToHistory(cURL.url());
-    }
-    //KHTML can't handle it, look for an appropriate application
-    else {
-        KService::List offers = KMimeTypeTrader::self()->query(mime, "Type == 'Application'");
-        if(offers.isEmpty()) {
-            KMessageBox::error(view(), i18n("No KDE service found for the MIME type \"%1\".", mime));
-            return false;
-        }
-        QList<QUrl> lst;
-        lst.append(cURL);
-        KRun::runService(*(offers.first()), lst, view());
-    }
-    return true;
-}
-
-void DocumentationViewer::home()
-{
-    if(!m_history.isEmpty()) {
-        openUrl(QUrl::fromLocalFile(m_history.first()));
-    }
-}
-
-void DocumentationViewer::forward()
-{
-    if(forwardEnable()) {
-        ++m_hpos;
-        openUrl(QUrl::fromLocalFile(m_history[m_hpos]));
-        emit updateStatus(backEnable(), forwardEnable());
-    }
-}
-
-
-void DocumentationViewer::back()
-{
-    if(backEnable()) {
-        --m_hpos;
-        openUrl(QUrl::fromLocalFile(m_history[m_hpos]));
-        emit updateStatus(backEnable(), forwardEnable());
-    }
-}
-
-
-void DocumentationViewer::addToHistory(const QString& url)
-{
-    if(m_history.count() > 0) {
-        while(m_hpos < m_history.count() - 1) {
-            m_history.pop_back();
-        }
-    }
-
-    if(!m_history.isEmpty()) {
-        ++m_hpos;
-    }
-
-    m_history.append(url);
-
-    m_hpos = m_history.count() - 1;
-    emit updateStatus(backEnable(), forwardEnable());
-}
-
-
-bool DocumentationViewer::backEnable()
-{
-    return (m_hpos > 0);
-}
-
-
-bool DocumentationViewer::forwardEnable()
-{
-    return (m_hpos < m_history.count() - 1);
-}
-
diff --git a/src/docpart.h b/src/docpart.h
deleted file mode 100644
index 7c631f41..00000000
--- a/src/docpart.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/***********************************************************************************************
-    begin                : Sun Jul 29 2001
-    copyright            : (C) 2001 - 2003 by Brachet Pascal
-                               2003 by Jeroen Wijnhout (Jeroen.Wijnhout@kdemail.net)
- ***********************************************************************************************/
-
-/***************************************************************************
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- ***************************************************************************/
-
-#ifndef DOCPART_H
-#define DOCPART_H
-
-#include <QStringList>
-#include <KHTMLPart>
-
-class DocumentationViewer : public KHTMLPart
-{
-    Q_OBJECT
-
-public:
-    explicit DocumentationViewer(QWidget *parent = Q_NULLPTR);
-    ~DocumentationViewer();
-
-    bool backEnable();
-    bool forwardEnable();
-
-public Q_SLOTS:
-    void home();
-    void forward();
-    void back();
-    void addToHistory(const QString& url);
-
-Q_SIGNALS:
-    void updateStatus(bool back, bool forward);
-
-protected:
-    virtual bool urlSelected(const QString &url,
-                             int button,
-                             int state,
-                             const QString &_target,
-                             const KParts::OpenUrlArguments &args = KParts::OpenUrlArguments(),
-                             const KParts::BrowserArguments &browserArgs = KParts::BrowserArguments()) override;
-
-private:
-    QStringList	m_history;
-    int		m_hpos;
-};
-
-#endif