remove duplicate TOC entry

removed sap-audit-log-workbook.md duplicate entry

Author: austinmccollum

articles/sentinel/TOC.yml

@@ -175,9 +175,7 @@
           - name: SAP audit log workbook
             href: sap/sap-audit-log-workbook.md
           - name: SAP audit controls workbook
-            href: sap/sap-audit-controls-workbook.md
-          - name: SAP audit log workbook
-            href: sap/sap-audit-log-workbook.md    
+            href: sap/sap-audit-controls-workbook.md   
           - name: Kickstart script reference
             href: sap/reference-kickstart.md
           - name: Container update script reference