PeerInfoNotAvailableException: Remove this class as no longer used

Change-Id: Ic6f4cca387686213ae5d84dde79c7d1e91c6ec16
diff --git a/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/rest/PeerInfoNotAvailableException.java b/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/rest/PeerInfoNotAvailableException.java
deleted file mode 100644
index df94f52..0000000
--- a/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/rest/PeerInfoNotAvailableException.java
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (C) 2017 The Android Open Source Project
-//
-// 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 com.ericsson.gerrit.plugins.highavailability.forwarder.rest;
-
-import java.io.IOException;
-
-public class PeerInfoNotAvailableException extends IOException {
-  private static final long serialVersionUID = 1L;
-}