diff --git a/3rdparty/libmygpo-qt/qjsonwrapper/Json.cpp b/3rdparty/libmygpo-qt/qjsonwrapper/Json.cpp
deleted file mode 100644
index 1b4a79065..000000000
--- a/3rdparty/libmygpo-qt/qjsonwrapper/Json.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Copyright 2014, Uwe L. Korn <uwelk@xhochy.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "Json.h"
-
-// Qt version specific includes
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
-    #include <QJsonDocument>
-    #include <QMetaProperty>
-#else
-    #include <qjson/parser.h>
-    #include <qjson/qobjecthelper.h>
-    #include <qjson/serializer.h>
-#endif
-
-namespace QJsonWrapper
-{
-
-QVariantMap
-qobject2qvariant( const QObject* object )
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
-    QVariantMap map;
-    if ( object == NULL )
-    {
-        return map;
-    }
-
-    const QMetaObject* metaObject = object->metaObject();
-    for ( int i = 0; i < metaObject->propertyCount(); ++i )
-    {
-        QMetaProperty metaproperty = metaObject->property( i );
-        if ( metaproperty.isReadable() )
-        {
-            map[ QLatin1String( metaproperty.name() ) ] = object->property( metaproperty.name() );
-        }
-    }
-    return map;
-#else
-    return QJson::QObjectHelper::qobject2qvariant( object );
-#endif
-}
-
-
-void
-qvariant2qobject( const QVariantMap& variant, QObject* object )
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
-    for ( QVariantMap::const_iterator iter = variant.begin(); iter != variant.end(); ++iter )
-    {
-        QVariant property = object->property( iter.key().toLatin1() );
-        Q_ASSERT( property.isValid() );
-        if ( property.isValid() )
-        {
-            QVariant value = iter.value();
-            if ( value.canConvert( property.type() ) )
-            {
-                value.convert( property.type() );
-                object->setProperty( iter.key().toLatin1(), value );
-            } else if ( QString( QLatin1String("QVariant") ).compare( QLatin1String( property.typeName() ) ) == 0 ) {
-                object->setProperty( iter.key().toLatin1(), value );
-            }
-        }
-    }
-#else
-    QJson::QObjectHelper::qvariant2qobject( variant, object );
-#endif
-}
-
-
-QVariant
-parseJson( const QByteArray& jsonData, bool* ok )
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
-    QJsonParseError error;
-    QJsonDocument doc = QJsonDocument::fromJson( jsonData, &error );
-    if ( ok != NULL )
-    {
-        *ok = ( error.error == QJsonParseError::NoError );
-    }
-    return doc.toVariant();
-#else
-    QJson::Parser p;
-    return p.parse( jsonData, ok );
-#endif
-}
-
-
-QByteArray
-toJson( const QVariant &variant, bool* ok )
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
-    QJsonDocument doc = QJsonDocument::fromVariant( variant );
-    if ( ok != NULL )
-    {
-        *ok = !doc.isNull();
-    }
-    return doc.toJson( QJsonDocument::Compact );
-#else
-    QJson::Serializer serializer;
-    QByteArray ret = serializer.serialize(variant);
-    if ( ok != NULL )
-    {
-        *ok = !ret.isNull();
-    }
-    return ret;
-#endif
-}
-
-}
diff --git a/3rdparty/libmygpo-qt/qjsonwrapper/Json.h b/3rdparty/libmygpo-qt/qjsonwrapper/Json.h
deleted file mode 100644
index 36d53a0f9..000000000
--- a/3rdparty/libmygpo-qt/qjsonwrapper/Json.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* Copyright 2014, Uwe L. Korn <uwelk@xhochy.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#pragma once
-#ifndef QJSONWRAPPER_JSON_H
-#define QJSONWRAPPER_JSON_H
-
-#include <QVariant>
-
-namespace QJsonWrapper
-{
-    QVariantMap qobject2qvariant( const QObject* object );
-    void qvariant2qobject( const QVariantMap& variant, QObject* object );
-    QVariant parseJson( const QByteArray& jsonData, bool* ok = 0 );
-    QByteArray toJson( const QVariant &variant, bool* ok = 0 );
-}
-
-#endif // QJSONWRAPPER_JSON_H