remove duplicate contributor

Signed-off-by: Karl W. Schulz <karl.schulz@amd.com>

.zenodo.json

@@ -16,10 +16,6 @@
             "affiliation": "AMD Research", 
             "name": "Karl W. Schulz"
         },
-        {
-            "affiliation": "AMD Research", 
-            "name": "Karl W. Schulz"
-        }, 		
         {
             "affiliation": "AMD Research", 	    
             "name": "Jose Santos"