moving out OptionalCacheLoader

Change-Id: If929ed119df1a0282e311188a00776e971f78991
diff --git a/core/store/src/main/java/org/onlab/onos/store/serializers/package-info.java b/core/store/src/main/java/org/onlab/onos/store/serializers/package-info.java
index 55f9fcf..c66304f 100644
--- a/core/store/src/main/java/org/onlab/onos/store/serializers/package-info.java
+++ b/core/store/src/main/java/org/onlab/onos/store/serializers/package-info.java
@@ -1,4 +1,4 @@
 /**
  * Various Kryo serializers for use in distributed stores.
  */
-package org.onlab.onos.store.serializers;
\ No newline at end of file
+package org.onlab.onos.store.serializers;