In Profile fields management screens, make sure the cancelled field options are not saved

When editing fields using options such as select boxes, radio boxes, check boxes, etc. when an admin cancelled one or more options, they were still saved. This make sure cancelled options are fully removed before the profile field is edited.

Fixes #5453

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8180 cdf35c40-ae34-48e0-9cc9-0c9da1808c22