Remove unused declaration

svn path=/trunk/KDE/kdepim/; revision=437862

kalarmapp.h

@@ -13,9 +13,9 @@
  *  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, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #ifndef KALARMAPP_H
@@ -42,7 +42,6 @@ class MainWindow;
 class AlarmListView;
 class MessageWin;
 class TrayWindow;
-class Preferences;
 class ShellProcess;