[Xcb] _iterator functions

[Barton C Massey]

I'm guessing it's a bug introduced when we changed the way
iterators were generated, but I'm just guessing.  At what
commit did they disappear?

	Bart

In message <87prb1uvjw.fsf at vertex.dottedmag.net> you wrote:
> I've noticed xcb_query_tree_children_iterator and
> xcb_get_modifier_mapping_keycodes_iterator functions were removed from
> XCB (at least from the Debian build of it), though I did not find
> anything relevant in commit logs or mailing list archives.
> 
> Was it intended change, or just a bug?