Compilation fixes after upgrade to NFD 0.6.6 and removal of old-style CS

Change-Id: I5472ae71675d8419d8d6c70990182ef028803087
diff --git a/helper/ndn-stack-helper.cpp b/helper/ndn-stack-helper.cpp
index 09f0d8c..cf60551 100644
--- a/helper/ndn-stack-helper.cpp
+++ b/helper/ndn-stack-helper.cpp
@@ -53,7 +53,6 @@
   : m_isForwarderStatusManagerDisabled(false)
   , m_isStrategyChoiceManagerDisabled(false)
   , m_needSetDefaultRoutes(false)
-  , m_maxCsSize(100)
 {
   setCustomNdnCxxClocks();
 
@@ -173,7 +172,7 @@
     ndn->getConfig().put("ndnSIM.disable_strategy_choice_manager", true);
   }
 
-  ndn->getConfig().put("tables.cs_max_packets", (m_maxCsSize == 0) ? 1 : m_maxCsSize);
+  ndn->getConfig().put("tables.cs_max_packets", m_maxCsSize);
 
   ndn->setCsReplacementPolicy(m_csPolicyCreationFunc);