How to remove After Effective Date and Date Track History icon in forms

We have a custom responsibility where we have removed the After Effective Date and Date Track History icons. Users are now asking to enable it.

This has been done years back and no one in my team remembers or knows how it was done.

Does anyone point me how this can be achieved so that I can undo it.

Custom responsibility - >

Standard responsibility ->

• I did not find anything in Forms Personalization.
• Setting Custom Code to Off also doesn't undo the change.
• There are no profiles set at responsibility level( other than the usual HR Security/HR Business Group etc.)