Remove type_ordering from CreateElementParent

Requires !1983 (merged), closes #1490 (closed)

!1983 (merged) makes type-aware ordering completely inoperative, since the new constraints prevent it from functioning, so this MR just removes the now useless type_ordering parameter.

⚠ This will probably require an update to Callico or any other project that uses type_ordering when calling CreateElementParent. For some reason, code.vpn returns no results, so I don't know if or where this is currently used!