Stop referring to WorkQueue.Executor

Change-Id: Id2b4b158f5a38604eecef55f72c31cc47a42d52c

src/main/java/com/ericsson/gerrit/plugins/evictcache/EvictCacheExecutorProvider.java

diff --git a/src/main/java/com/ericsson/gerrit/plugins/evictcache/EvictCacheExecutorProvider.java b/src/main/java/com/ericsson/gerrit/plugins/evictcache/EvictCacheExecutorProvider.java
index e1e1595..5194967 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/evictcache/EvictCacheExecutorProvider.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/evictcache/EvictCacheExecutorProvider.java
@@ -26,7 +26,7 @@
 @Singleton
 class EvictCacheExecutorProvider
     implements Provider<ScheduledThreadPoolExecutor>, LifecycleListener {
-  private WorkQueue.Executor executor;
+  private ScheduledThreadPoolExecutor executor;
 
   @Inject
   EvictCacheExecutorProvider(WorkQueue workQueue,