profile_clear_relation doesn't work, iterator still sees deleted nodes

profile_clear_relation doesn't work, iterator still sees deleted nodes

The "deleted" flag was being checked when writing out the file, but
not when iterating through using the profile handle being used to do
the deletions.

* prof_tree.c (profile_node_iterator): After checking skip_num counter, also
skip over deleted nodes.
* prof_test1 (test3): New proc.
(top level): Run it.

ticket: new
target_version: 1.4.1

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@17111 dc483132-0cff-0310-8789-dd5450dbe970