Respect can_delete setting when saving profile field

Fixes #4947

Props needle

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7419 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Whitespace

git-svn-id: https://buddypress.svn.wordpress.org/trunk@7420 cdf35c40-ae34-48e0-9cc9-0c9da1808c22