route: remove RTM_LOCK on openbsd
RTM_LOCK is no longer defined on OpenBSD as of version 6.4, see
https://man.openbsd.org/OpenBSD-6.4/route.4 and
https://marc.info/?l=openbsd-tech&m=153018811429193&w=2
CL 419180 broke the build on openbsd/arm64 and openbsd/mips64 due to
RTM_LOCK not being defined on these platforms because these ports were
based on OpenBSD versions newer than 6.4. Earlier OpenBSD versions are
no longer supported since Go 1.15 per https://golang.org/wiki/OpenBSD
For golang/go#54035
Change-Id: I476a60ab2a082c7ddc763b5dbaf279ba47dcc1e1
Reviewed-on: https://go-review.googlesource.com/c/net/+/419937
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
diff --git a/route/sys_openbsd.go b/route/sys_openbsd.go
index 038fb77..21f1d3d 100644
--- a/route/sys_openbsd.go
+++ b/route/sys_openbsd.go
@@ -73,7 +73,6 @@
unix.RTM_LOSING: rtm,
unix.RTM_REDIRECT: rtm,
unix.RTM_MISS: rtm,
- unix.RTM_LOCK: rtm,
unix.RTM_RESOLVE: rtm,
unix.RTM_NEWADDR: ifam,
unix.RTM_DELADDR: ifam,
