update package s2ioperator

Signed-off-by: soulseen <sunzhu@yunify.com>

vendor/golang.org/x/sys/windows/env_windows.go

@@ -6,11 +6,7 @@
 
 package windows
 
-import (
-	"syscall"
-	"unicode/utf16"
-	"unsafe"
-)
+import "syscall"
 
 func Getenv(key string) (value string, found bool) {
 	return syscall.Getenv(key)
@@ -28,34 +24,6 @@ func Environ() []string {
 	return syscall.Environ()
 }
 
-// Returns a default environment associated with the token, rather than the current
-// process. If inheritExisting is true, then this environment also inherits the
-// environment of the current process.
-func (token Token) Environ(inheritExisting bool) (env []string, err error) {
-	var block *uint16
-	err = CreateEnvironmentBlock(&block, token, inheritExisting)
-	if err != nil {
-		return nil, err
-	}
-	defer DestroyEnvironmentBlock(block)
-	blockp := uintptr(unsafe.Pointer(block))
-	for {
-		entry := (*[(1 << 30) - 1]uint16)(unsafe.Pointer(blockp))[:]
-		for i, v := range entry {
-			if v == 0 {
-				entry = entry[:i]
-				break
-			}
-		}
-		if len(entry) == 0 {
-			break
-		}
-		env = append(env, string(utf16.Decode(entry)))
-		blockp += 2 * (uintptr(len(entry)) + 1)
-	}
-	return env, nil
-}
-
 func Unsetenv(key string) error {
 	return syscall.Unsetenv(key)
 }