diff --git a/src/common/grttProbe.cpp b/src/common/grttProbe.cpp
deleted file mode 100644
index 3f6554c..0000000
--- a/src/common/grttProbe.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-#include "grttProbe.h"
-
-// This code is _not_ part of the NORM protocol library. This
-// is an independent class that can be used as an alternative
-// to conduct the sort of GRTT probing that is conducted as part 
-// of NORM protocol operation.  This can be used in conjunction
-// with NORM by disabling NORM's built-in GRTT probing and using  
-// the information collected from this independent probing  to 
-// dynamically and explicitly set the NORM sender GRTT estimate.
-
-
-using namespace GrttProbe
-{
-    // return length in 32-bit words (i.e. 1 word == 4 bytes)
-    unsigned int GetIdWords(IdType idType)
-    {
-        switch (idType)
-        {
-            case ID_INT32:
-            case ID_IPV4:
-                return 1;
-            case ID_IPV6:
-                return 4;
-            case ID_ETH:
-                return 2;  // includes padding
-            default:
-                return 0;
-        }
-    }  // end GrttProbe::Message::GetIdWords()
-};  // end namespace GrttProbe