Update remediation_advice.json

mappings/remediation_advice/remediation_advice.json

@@ -1166,7 +1166,7 @@
               "id": "master_key_identification",
               "remediation_advice": "While physical lock systems require the key material to be inside the lock, electonic access control systems can use cryptographicly strong key mechanisms which prevent the key material from being accessable on the device"
             }
-          ],
+          ]
         }
       ]
     },