ca-config uses name instead of ClientCaItem

Change-Id: Ie4e71bf167c661e13038b356c7efb95816da26d5
diff --git a/src/ca-config.cpp b/src/ca-config.cpp
index 0f4edc8..06b5c68 100644
--- a/src/ca-config.cpp
+++ b/src/ca-config.cpp
@@ -88,14 +88,13 @@
   return result;
 }
 
-std::list<ClientCaItem>
+std::list<Name>
 CaConfig::parseRelatedCaList(const JsonSection& section)
 {
-  std::list<ClientCaItem> result;
+  std::list<Name> result;
   auto it = section.begin();
   for (; it != section.end(); it++) {
-    ClientCaItem item;
-    item.m_caName = Name(it->second.get<std::string>("ca-prefix"));
+    Name item(it->second.get<std::string>("ca-prefix"));
     result.push_back(item);
   }
   return result;