Remove file_windows.go

pkg/util/file.go

-//go:build !windows
-
 package util
 
 import (

pkg/util/file_windows.go

-package util
-
-import (
-	"os"
-	"strings"
-	"time"
-
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
-)
-
-func SetFileModeForPath(name string, mode os.FileMode) error {
-	return nil
-}
-
-func SetFileModeForFile(file *os.File, mode os.FileMode) error {
-	return nil
-}
-
-// ReadFile reads from a file
-func ReadFile(path string) (string, error) {
-	if path == "" {
-		return "", nil
-	}
-
-	for start := time.Now(); time.Since(start) < 4*time.Minute; {
-		vpnBytes, err := os.ReadFile(path)
-		if err == nil {
-			return strings.TrimSpace(string(vpnBytes)), nil
-		} else if os.IsNotExist(err) {
-			logrus.Infof("Waiting for %s to be available\n", path)
-			time.Sleep(2 * time.Second)
-		} else {
-			return "", err
-		}
-	}
-
-	return "", errors.New("Timeout while trying to read the file")
-}
\ No newline at end of file