Java: remove nativeSql sink

Author: Jami Cogswell

java/ql/lib/ext/java.sql.model.yml

@@ -3,7 +3,6 @@ extensions:
       pack: codeql/java-all
       extensible: sinkModel
     data:
-      # - ["java.sql", "Connection", True, "nativeSQL", "", "", "Argument[0]", "sql", "manual"]
       - ["java.sql", "Connection", True, "prepareCall", "", "", "Argument[0]", "sql", "manual"]
       - ["java.sql", "Connection", True, "prepareStatement", "", "", "Argument[0]", "sql", "manual"]
       - ["java.sql", "DatabaseMetaData", True, "getColumns", "(String,String,String,String)", "", "Argument[2]", "sql", "ai-generated"]