Server Administration :: Clean Up Duplicate Objects Owned By SYS And SYSTEM?

we are doing database upgradation 10g2 to 11gr2, while doing pre check before upgrdation ..we have found few duplicate objectes on sys and system schema..

SQL> column object_name format a30
select object_name, object_type
from dba_objects
where object_name||object_type in
(select object_name||object_type
from dba_objects
where owner = 'SYS')

[code]...

As per metalink note "How to Clean Up Duplicate Objects Owned by SYS and SYSTEM Schema [ID 1030426.6]"..

im going to do drop only below objects ..

DROP TABLE SYS.HELP;
DROP INDEX SYS.HELP_TOPIC_SEQ;
DROP TABLE SYSTEM.PLAN_TABLE;

and ignore below objects ...

DROP TABLE SYSTEM.AQ$_SCHEDULES;
DROP INDEX SYSTEM.AQ$_SCHEDULES_PRIMARY;
DROP PACKAGE SYSTEM.DBMS_REPCAT_AUTH;
DROP PACKAGE BODY SYSTEM.DBMS_REPCAT_AUTH;