table: add CS policy interface

Change-Id: I1946fe03ca00150b1ff9f08acae48c01bc569904
Refs: #1207
diff --git a/daemon/table/cs-internal.hpp b/daemon/table/cs-internal.hpp
index 7df3d06..3f22bcd 100644
--- a/daemon/table/cs-internal.hpp
+++ b/daemon/table/cs-internal.hpp
@@ -38,18 +38,7 @@
 class EntryImpl;
 
 typedef std::set<EntryImpl> Table;
-typedef Table::const_iterator TableIt;
-
-typedef std::list<TableIt> Queue;
-typedef Queue::iterator QueueIt;
-
-enum QueueType {
-  QUEUE_UNSOLICITED,
-  QUEUE_STALE,
-  QUEUE_FIFO,
-  QUEUE_MAX,
-  QUEUE_NONE = QUEUE_MAX
-};
+typedef Table::const_iterator iterator;
 
 } // namespace cs
 } // namespace nfd