tools: replace boost::any usage with ndn::any

Change-Id: I7048a64b7c17353037ea9a64a11366d2fae6fd49
diff --git a/tools/nfdc/face-module.cpp b/tools/nfdc/face-module.cpp
index ae6ba16..7bde8bf 100644
--- a/tools/nfdc/face-module.cpp
+++ b/tools/nfdc/face-module.cpp
@@ -310,10 +310,8 @@
 void
 FaceModule::destroy(ExecuteContext& ctx)
 {
-  const boost::any& faceIdOrUri = ctx.args.at("face");
-
   FindFace findFace(ctx);
-  FindFace::Code res = findFace.execute(faceIdOrUri);
+  FindFace::Code res = findFace.execute(ctx.args.at("face"));
 
   ctx.exitCode = static_cast<int>(res);
   switch (res) {