Remove vendor directory and add it to the ignore list

vendor/golang.org/x/sys/unix/openbsd_pledge.go

@@ -1,38 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build openbsd
-// +build 386 amd64 arm
-
-package unix
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-const (
-	SYS_PLEDGE = 108
-)
-
-// Pledge implements the pledge syscall. For more information see pledge(2).
-func Pledge(promises string, paths []string) error {
-	promisesPtr, err := syscall.BytePtrFromString(promises)
-	if err != nil {
-		return err
-	}
-	promisesUnsafe, pathsUnsafe := unsafe.Pointer(promisesPtr), unsafe.Pointer(nil)
-	if paths != nil {
-		var pathsPtr []*byte
-		if pathsPtr, err = syscall.SlicePtrFromStrings(paths); err != nil {
-			return err
-		}
-		pathsUnsafe = unsafe.Pointer(&pathsPtr[0])
-	}
-	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(promisesUnsafe), uintptr(pathsUnsafe), 0)
-	if e != 0 {
-		return e
-	}
-	return nil
-}