Revert "Merge pull request 101888 from kolyshkin/update-runc-rc94"

This reverts commit b1b06fe0a4, reversing
changes made to 382a33986b.

vendor/github.com/containerd/console/tc_freebsd_cgo.go

@@ -1,57 +0,0 @@
-// +build freebsd,cgo
-
-/*
-   Copyright The containerd Authors.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-*/
-
-package console
-
-import (
-	"fmt"
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-/*
-#include <stdlib.h>
-#include <unistd.h>
-*/
-import "C"
-
-const (
-	cmdTcGet = unix.TIOCGETA
-	cmdTcSet = unix.TIOCSETA
-)
-
-// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
-// unlockpt should be called before opening the slave side of a pty.
-func unlockpt(f *os.File) error {
-	fd := C.int(f.Fd())
-	if _, err := C.unlockpt(fd); err != nil {
-		C.close(fd)
-		return fmt.Errorf("unlockpt: %w", err)
-	}
-	return nil
-}
-
-// ptsname retrieves the name of the first available pts for the given master.
-func ptsname(f *os.File) (string, error) {
-	n, err := unix.IoctlGetInt(int(f.Fd()), unix.TIOCGPTN)
-	if err != nil {
-		return "", err
-	}
-	return fmt.Sprintf("/dev/pts/%d", n), nil
-}