misc/55784: Remove old variables in bsd.own.mk

[wataash%wataash.com@localhost]

>Number:         55784
>Category:       misc
>Synopsis:       Remove old variables in bsd.own.mk
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 04 12:05:00 +0000 2020
>Originator:     Wataru Ashihara
>Release:        -current (2020-11-04 07:51)
>Organization:
>Environment:
Environment: NetBSD localhost 9.99.75 NetBSD 9.99.75 (GENERIC) #1: Wed Nov  4 20:50:19 JST 2020  wsh@wsh64:/home/wsh/qc/netbsd/zco.amd64
>Description:
external/bsd/llvm/bin/Makefile v1.19, the only file where MKMCLINKER/MKLLD/MKLLDB had been used, was removed on 2019-11-13.

>How-To-Repeat:

>Fix:
Index: share/mk/bsd.own.mk
===================================================================
RCS file: /cvsroot/src/share/mk/bsd.own.mk,v
retrieving revision 1.1229
diff -u -r1.1229 bsd.own.mk
--- share/mk/bsd.own.mk	25 Oct 2020 09:06:24 -0000	1.1229
+++ share/mk/bsd.own.mk	4 Nov 2020 11:58:41 -0000
@@ -1278,8 +1278,8 @@
 	MKFIRMWARE \
 	MKGROFFHTMLDOC \
 	MKKYUA \
-	MKLIBCXX MKLLD MKLLDB MKLLVM MKLLVMRT MKLINT \
-	MKMANZ MKMCLINKER \
+	MKLIBCXX MKLLVM MKLLVMRT MKLINT \
+	MKMANZ \
 	MKNOUVEAUFIRMWARE MKNSD \
 	MKOBJDIRS \
 	MKPCC MKPICINSTALL MKPIGZGZIP \