Delete unused InternalServerErrorException.java

src/java/org/jivesoftware/util/InternalServerErrorException.java

-/**
- * $RCSfile$
- * $Revision: 3144 $
- * $Date: 2005-12-01 14:20:11 -0300 (Thu, 01 Dec 2005) $
- *
- * Copyright (C) 2004-2008 Jive Software. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.jivesoftware.util;
-
-/**
- * A generic exception for when errors occur in the system.
- */
-public class InternalServerErrorException extends RuntimeException {
-    public InternalServerErrorException(String s, Exception e) {
-        super(s, e);
-    }
-}