runtime: remove reference to openbsd kern.rthreads sysctl

The kern.rthreads sysctl has not existed for a long time - there is no way to
disable rthreads and __tfork no longer returns ENOTSUP.

Change-Id: Ia50ff01ac86ea83358e72b8f45f7818aaec1e4b1
Reviewed-on: https://go-review.googlesource.com/7490
Reviewed-by: Minux Ma <minux@golang.org>

diff --git a/src/runtime/os1_openbsd.go b/src/runtime/os1_openbsd.go
index 04779ea870fbb99f4f990ff39aa95546f417ced5..92a19fe31b4550fb0a1d57bbc54c929b1d04129d 100644 (file)
--- a/src/runtime/os1_openbsd.go
+++ b/src/runtime/os1_openbsd.go
@@ -117,9 +117,6 @@ func newosproc(mp *m, stk unsafe.Pointer) {
 
        if ret < 0 {
                print("runtime: failed to create new OS thread (have ", mcount()-1, " already; errno=", -ret, ")\n")
-               if ret == -_ENOTSUP {
-                       print("runtime: is kern.rthreads disabled?\n")
-               }
                throw("runtime.newosproc")
        }
 }