src: Removing deprecated logging facility

This commit removes last usages of logging facility and removes the
facility all together.  At some point in the future we may add logging
back, but it should be something that is depends and configured from
the application.

Change-Id: I10bd94aea05f127041d68cb77a77eb96e929c880
diff --git a/src/security/validator-regex.cpp b/src/security/validator-regex.cpp
index 4c74e79..5f92436 100644
--- a/src/security/validator-regex.cpp
+++ b/src/security/validator-regex.cpp
@@ -18,10 +18,6 @@
 #include "signature-sha256-with-rsa.hpp"
 #include "certificate-cache-ttl.hpp"
 
-#include "../util/logging.hpp"
-
-INIT_LOGGER("ndn.ValidatorRegex");
-
 using namespace std;
 
 namespace ndn {
@@ -61,7 +57,6 @@
     }
   else
     {
-      _LOG_DEBUG("Wrong validity:");
       return onValidationFailed(data,
                                 "Signing certificate " +
                                 signCertificate->getName().toUri() +
@@ -126,7 +121,8 @@
                 }
               else
                 {
-                  // _LOG_DEBUG("KeyLocator is not trust anchor");
+                  // KeyLocator is not a trust anchor
+
                   OnDataValidated onKeyValidated =
                     bind(&ValidatorRegex::onCertificateValidated, this, _1,
                          data.shared_from_this(), onValidated, onValidationFailed);