Windows: Updates Windows Vendoring

Updates windows dependent libraries for vendoing.

vendor/github.com/Microsoft/hcsshim/cmd/wclayer/remove.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"path/filepath"
+
+	winio "github.com/Microsoft/go-winio"
+	"github.com/Microsoft/hcsshim"
+	"github.com/Microsoft/hcsshim/internal/appargs"
+
+	"github.com/urfave/cli"
+)
+
+var removeCommand = cli.Command{
+	Name:      "remove",
+	Usage:     "permanently removes a layer directory in its entirety",
+	ArgsUsage: "<layer path>",
+	Before:    appargs.Validate(appargs.NonEmptyString),
+	Action: func(context *cli.Context) (err error) {
+		path, err := filepath.Abs(context.Args().First())
+		if err != nil {
+			return err
+		}
+
+		err = winio.EnableProcessPrivileges([]string{winio.SeBackupPrivilege, winio.SeRestorePrivilege})
+		if err != nil {
+			return err
+		}
+
+		return hcsshim.DestroyLayer(driverInfo, path)
+	},
+}