kern/40125: Old functions are left in signal(9)

[isaki%pastel-flower.jp@localhost]

>Number:         40125
>Category:       kern
>Synopsis:       Old functions are left in signal(9)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 07 05:45:00 +0000 2008
>Originator:     Tetsuya Isaki
>Release:        NetBSD 5.99.3
>Organization:
>Environment:
Here is output of my uname, but this PR is for current src.
NetBSD XXXXXX 4.0_RC3 NetBSD 4.0_RC3 (XXXXXX) #3: Sun Oct 21 12:29:52 JST 2007  
root@XXXXXX:/usr/src/sys/arch/i386/compile/XXXXXX i386
>Description:
Old(?) two functions are left in signal(9). 

1. sched_psignal() is obsoleted in
   http://mail-index.netbsd.org/source-changes/2006/11/01/0008.html

2. I could not find about sigmasked() in src/sys.
>How-To-Repeat:
see signal(9) on current.
>Fix: