I don't think this is needed anymore

common/config.go

@@ -69,16 +69,6 @@ func DownloadableURL(original string) (string, error) {
 	}
 
 	if u.Scheme == "file" {
-		// Windows file handling is all sorts of tricky...
-		if runtime.GOOS == "windows" {
-			// If the path is using Windows-style slashes, URL parses
-			// it into the host field.
-			if u.Path == "" && strings.Contains(u.Host, `\`) {
-				u.Path = u.Host
-				u.Host = ""
-			}
-		}
-
 		// Only do the filepath transformations if the file appears
 		// to actually exist.
 		if _, err := os.Stat(u.Path); err == nil {