Remove ReviewerInfo.java

Since b47da2457895ad0a1049218a02c1ad5e3ebb6651 the file
ReviewerInfo.java is not used anymore.

Change-Id: I8f1752526242183b670a3f83d5e1d6dac1e66c64

gerrit-common/src/main/java/com/google/gerrit/common/data/ReviewerInfo.java

diff --git a/gerrit-common/src/main/java/com/google/gerrit/common/data/ReviewerInfo.java b/gerrit-common/src/main/java/com/google/gerrit/common/data/ReviewerInfo.java
deleted file mode 100644
index 28a8340..0000000
--- a/gerrit-common/src/main/java/com/google/gerrit/common/data/ReviewerInfo.java
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (C) 2011 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.google.gerrit.common.data;
-
-/**
- * Suggested reviewer for a change. Can be a user ({@link AccountInfo}) or a
- * group ({@link GroupReference}).
- */
-public class ReviewerInfo implements Comparable<ReviewerInfo> {
-  private AccountInfo accountInfo;
-  private GroupReference groupReference;
-
-  protected ReviewerInfo() {
-  }
-
-  public ReviewerInfo(final AccountInfo accountInfo) {
-    this.accountInfo = accountInfo;
-  }
-
-  public ReviewerInfo(final GroupReference groupReference) {
-    this.groupReference = groupReference;
-  }
-
-  public AccountInfo getAccountInfo() {
-    return accountInfo;
-  }
-
-  public GroupReference getGroup() {
-    return groupReference;
-  }
-
-  @Override
-  public int compareTo(final ReviewerInfo o) {
-    return getSortValue().compareTo(o.getSortValue());
-  }
-
-  private String getSortValue() {
-    if (accountInfo != null) {
-      if (accountInfo.getPreferredEmail() != null) {
-        return accountInfo.getPreferredEmail();
-      }
-      return accountInfo.getFullName();
-    }
-    return groupReference.getName();
-  }
-}