Move model to TaintTracking::FunctionModel

Author: egregius313

go/ql/lib/ext/github.com.kanikanema.gorqlite.model.yml

@@ -22,4 +22,3 @@ extensions:
       extensible: summaryModel
     data:
       - ["group:gorqlite", "QueryResult", True, "Map", "", "", "Argument[receiver]", "ReturnValue[0]", "taint", "manual"]
-      - ["group:gorqlite", "QueryResult", True, "Scan", "", "", "Argument[receiver]", "Argument[0]", "taint", "manual"]