lib/versioner: Clean the versions dir of symlinks, not the full folder

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4289

lib/versioner/versioner.go

@@ -8,12 +8,6 @@
 // simple default versioning scheme.
 package versioner
 
-import (
-	"os"
-	"path/filepath"
-	"runtime"
-)
-
 type Versioner interface {
 	Archive(filePath string) error
 }
@@ -24,23 +18,3 @@ const (
 	TimeFormat = "20060102-150405"
 	TimeGlob   = "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]" // glob pattern matching TimeFormat
 )
-
-func cleanSymlinks(dir string) {
-	if runtime.GOOS == "windows" {
-		// We don't do symlinks on Windows. Additionally, there may
-		// be things that look like symlinks that are not, which we
-		// should leave alone. Deduplicated files, for example.
-		return
-	}
-	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if info.Mode()&os.ModeSymlink != 0 {
-			l.Infoln("Removing incorrectly versioned symlink", path)
-			os.Remove(path)
-			return filepath.SkipDir
-		}
-		return nil
-	})
-}