grumble, pkg/freezer: more stable freezing on Windows.

pkg/freezer/walker.go

@@ -11,7 +11,6 @@ import (
 	"hash/crc32"
 	"io"
 	"math"
-	"os"
 )
 
 // Checks whether the error err is an EOF
@@ -79,19 +78,6 @@ func (txr *txReader) Consumed() int {
 	return txr.consumed
 }
 
-// Create a new Walker that iterates over the entries of the given log file.
-func NewFileWalker(fn string) (walker *Walker, err error) {
-	f, err := os.Open(fn)
-	if err != nil {
-		return nil, err
-	}
-
-	walker = new(Walker)
-	walker.r = f
-
-	return walker, nil
-}
-
 // Create a new Walker that iterates over the log entries of a given Reader.
 func NewReaderWalker(r io.Reader) (walker *Walker, err error) {
 	walker = new(Walker)