PR: remove leftover code, fix linter, extra comment

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

Author: helsaawy

internal/tools/rootfs/main.go

@@ -14,7 +14,12 @@ import (
 	"github.com/Microsoft/hcsshim/internal/oc"
 )
 
-// TODO: tests ...............
+// TODO: add tests for:
+// - general functionality (Windows + Linux)
+// - adding `./` prefix
+// - adding `/` suffix
+// - overriding UID and GUID
+// TODO: output CPIO archive?
 
 func main() {
 	logrus.SetFormatter(&logrus.TextFormatter{FullTimestamp: true})
@@ -72,17 +77,3 @@ func run() error {
 
 	return app.Run(args)
 }
-
-// TODO: output CPIO archive
-
-// see 	"github.com/u-root/mkuimage/cpio".fs_windows.go
-type tarRecorder struct {
-	inumber uint64
-}
-
-func newTarRecorder() *tarRecorder { return &tarRecorder{inumber: 2} }
-
-func (r *tarRecorder) inode() uint64 {
-	r.inumber++
-	return r.inumber - 1
-}

internal/tools/rootfs/merge.go

@@ -287,9 +287,7 @@ func (c *mergeCommand) writeLayer(
 			continue
 		}
 
-		//
 		// update header (as needed)
-		//
 
 		if c.RelativePathPrefix && !(strings.HasPrefix(header.Name, `./`) || (c.OS == windowsOS && strings.HasPrefix(header.Name, `.\`))) {
 			stats.numRelPrepend++