[PATCH] gzio: Remove confusing, out-dated comment

[Glenn Washburn]

The "transparent" parameter to grub_gzio_open was removed in 2010, fc2ef1172c
(* grub-core/io/gzio.c (grub_gzio_open): Removed "transparent" parameter.)

Signed-off-by: Glenn Washburn <development@efficientek.com>
---
 grub-core/io/gzio.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/grub-core/io/gzio.c b/grub-core/io/gzio.c
index 4fa31ff218..ca93557513 100644
--- a/grub-core/io/gzio.c
+++ b/grub-core/io/gzio.c
@@ -1188,9 +1188,10 @@ initialize_tables (grub_gzio_t gzio)
 }
 
 
-/* Open a new decompressing object on the top of IO. If TRANSPARENT is true,
-   even if IO does not contain data compressed by gzip, return a valid file
-   object. Note that this function won't close IO, even if an error occurs.  */
+/*
+ * Open a new decompressing object on the top of IO.
+ * Note that this function won't close IO, even if an error occurs.
+ */
 static grub_file_t
 grub_gzio_open (grub_file_t io, enum grub_file_type type)
 {
-- 
2.34.1