core: move nfd-specific files to daemon/

Refs: #4922
Change-Id: I2243dbb87c63f9cbaf7d7051d7a0d4bca2f9fdb5
diff --git a/daemon/table/fib.hpp b/daemon/table/fib.hpp
index fc73a7d..462a29b 100644
--- a/daemon/table/fib.hpp
+++ b/daemon/table/fib.hpp
@@ -29,8 +29,6 @@
 #include "fib-entry.hpp"
 #include "name-tree.hpp"
 
-#include "core/fib-max-depth.hpp"
-
 #include <boost/range/adaptor/transformed.hpp>
 
 namespace nfd {
@@ -89,7 +87,7 @@
   static constexpr size_t
   getMaxDepth()
   {
-    return FIB_MAX_DEPTH;
+    return NameTree::getMaxDepth();
   }
 
   /** \brief Find or insert a FIB entry