Remove unused header files

src/core/Exporter.h

@@ -1,16 +0,0 @@
-#ifndef KEEPASSX_EXPORTER_H
-#define KEEPASSX_EXPORTER_H
-
-class Database;
-class Group;
-
-class Exporter
-{
-public:
-    virtual Database* exportGroup(Group* group) = 0;
-    virtual ~Exporter()
-    {
-    }
-};
-
-#endif // KEEPASSX_EXPORTER_H

src/core/ListDeleter.h

@@ -1,39 +0,0 @@
-/*
- *  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
- *
- *  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 or (at your option)
- *  version 3 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef KEEPASSX_LISTDELETER_H
-#define KEEPASSX_LISTDELETER_H
-
-#include <QList>
-
-template <typename T> class ListDeleter
-{
-public:
-    inline explicit ListDeleter(QList<T>* list)
-        : m_list(list)
-    {
-    }
-    inline ~ListDeleter()
-    {
-        qDeleteAll(*m_list);
-    }
-
-private:
-    QList<T>* m_list;
-};
-
-#endif // KEEPASSX_LISTDELETER_H