I am replacing a colleague for the support of a SharePoint 2010 intranet.
A functionality has been implemented allowing users to make holiday requests.
The user fills in an InfoPath form to make an holiday request.
The holiday requests are stored in a document library.
I have deleted a useless field in the InfoPath form by using "InfoPath Designer".
The deleted field was associated with a column in the holiday request library.
I have republished the form.
I expected the column to be automatically deleted but the column has not been deleted.
The column is unclickable in the library settings so I can not delete it manually.
What should I do to delete the useless column ?
Any help will be greatly appreciated