Refactor PCE and PCEP test adapters to remove redundant classes

Change-Id: I407c3dcd42588c03ba7f5c438d0bf61409d64d69
diff --git a/protocols/pcep/server/ctl/src/test/java/org/onosproject/pcelabelstore/util/TestEventuallyConsistentMap.java b/protocols/pcep/server/ctl/src/test/java/org/onosproject/pcelabelstore/util/TestEventuallyConsistentMap.java
index 9184352..7872355 100644
--- a/protocols/pcep/server/ctl/src/test/java/org/onosproject/pcelabelstore/util/TestEventuallyConsistentMap.java
+++ b/protocols/pcep/server/ctl/src/test/java/org/onosproject/pcelabelstore/util/TestEventuallyConsistentMap.java
@@ -30,6 +30,7 @@
 import org.onosproject.cluster.NodeId;
 import org.onosproject.store.Timestamp;
 import org.onosproject.store.service.EventuallyConsistentMap;
+import org.onosproject.store.service.EventuallyConsistentMapAdapter;
 import org.onosproject.store.service.EventuallyConsistentMapBuilder;
 import org.onosproject.store.service.EventuallyConsistentMapEvent;
 import org.onosproject.store.service.EventuallyConsistentMapListener;