security: merge SIGNER_TYPE_PIB_* into SIGNER_TYPE_ID and SIGNER_TYPE_KEY

refs #3932

Change-Id: I73d2f479567e590fa3fa60d035b9275b69043b3e
diff --git a/tests/unit-tests/security/verification-helpers.t.cpp b/tests/unit-tests/security/verification-helpers.t.cpp
index 208f555..0f0809e 100644
--- a/tests/unit-tests/security/verification-helpers.t.cpp
+++ b/tests/unit-tests/security/verification-helpers.t.cpp
@@ -73,7 +73,7 @@
 //     std::cout << "struct " + type + "Dataset\n{\n";
 //     std::cout << "  const std::string name = \"" << type << "\";\n";
 
-//     if (signingInfo.getSignerType() == SigningInfo::SIGNER_TYPE_PIB_ID) {
+//     if (signingInfo.getSignerType() == SigningInfo::SIGNER_TYPE_ID) {
 //       print("cert", signingInfo.getPibIdentity().getDefaultKey().getDefaultCertificate().wireEncode().wire(),
 //             signingInfo.getPibIdentity().getDefaultKey().getDefaultCertificate().wireEncode().size());
 //     }