Fix Eclipse warnings

* Add serial version ID to exception class
* Remove unused field

Change-Id: If3db62c2ff048d5bf2a6dc325cb20bac8158899c
diff --git a/owners-autoassign/src/main/java/com/vmware/gerrit/owners/common/ReviewerManagerException.java b/owners-autoassign/src/main/java/com/vmware/gerrit/owners/common/ReviewerManagerException.java
index 9bed4c8..2425514 100644
--- a/owners-autoassign/src/main/java/com/vmware/gerrit/owners/common/ReviewerManagerException.java
+++ b/owners-autoassign/src/main/java/com/vmware/gerrit/owners/common/ReviewerManagerException.java
@@ -17,6 +17,8 @@
 package com.vmware.gerrit.owners.common;
 
 public class ReviewerManagerException extends Exception {
+  private static final long serialVersionUID = 1L;
+
   public ReviewerManagerException(String message) {
     super(message);
   }
diff --git a/owners-common/src/main/java/com/vmware/gerrit/owners/common/AccountsImpl.java b/owners-common/src/main/java/com/vmware/gerrit/owners/common/AccountsImpl.java
index e685ffd..429f7b8 100644
--- a/owners-common/src/main/java/com/vmware/gerrit/owners/common/AccountsImpl.java
+++ b/owners-common/src/main/java/com/vmware/gerrit/owners/common/AccountsImpl.java
@@ -43,7 +43,6 @@
 public class AccountsImpl implements Accounts {
   private static final Logger log = LoggerFactory.getLogger(AccountsImpl.class);
 
-  private final OneOffRequestContext requestCtx;
   private final AccountResolver resolver;
   private final AccountCache byId;
   private final GroupCache groupCache;
@@ -55,14 +54,12 @@
   public AccountsImpl(
       AccountResolver resolver,
       AccountCache byId,
-      OneOffRequestContext requestCtx,
       GroupCache groupCache,
       GroupMembers.Factory groupMembersFactory,
       OneOffRequestContext oneOffRequestContext,
       IdentifiedUser.GenericFactory userFactory) {
     this.resolver = resolver;
     this.byId = byId;
-    this.requestCtx = requestCtx;
     this.groupCache = groupCache;
     this.groupMembers = groupMembersFactory;
     this.adminUser = userFactory.create(new Account.Id(1000000));