acpi: bgrt: fix build error due to attribute change

No need to call sysfs_bin_attr_init, as the attribute is not dynamically
created.  Also, we renamed the attribute, so this one isn't even valid
anymore.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Cc: Len Brown <lenb@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/acpi/bgrt.c

@@ -86,7 +86,6 @@ static int __init bgrt_init(void)
 	if (!bgrt_image)
 		return -ENODEV;
 
-	sysfs_bin_attr_init(&image_attr);
 	bin_attr_image.private = bgrt_image;
 	bin_attr_image.size = bgrt_image_size;