lib/44090: proplib has a duplicate RB-tree implementation

[rmind%netbsd.org@localhost]

>Number:         44090
>Category:       lib
>Synopsis:       proplib has a duplicate RB-tree implementation
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 13 07:30:00 +0000 2010
>Originator:     Mindaugas Rasiukevicius
>Release:        NetBSD 5.99.39
>Organization:
The NetBSD Project
>Environment:
>Description:
        - proplib(3) has a duplicate RB-tree implementation;
        - proplib's implementation and rbtree(3) are out of sync.
>How-To-Repeat:
        Code inspection.
>Fix:
        Remove prop_rb.c and always use rbtree(3).