[gnome-epub-thumbnailer] mobi: Don't bail on encrypted mobi files

[Bastien Nocera <hadess src gnome org>]

commit 675c4efafbfc1ecc9982ffcdb917fd4f73ca6a71
Author: Chris Lee <clee mg8 org>
Date:   Wed Nov 13 01:58:30 2013 -0800

    mobi: Don't bail on encrypted mobi files
    
    The image data isn't encrypted, so we can still generate thumbnails.
    
    http://wiki.mobileread.com/wiki/MOBI#MOBI_DRM

 gnome-mobi-thumbnailer.c |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)
---
diff --git a/gnome-mobi-thumbnailer.c b/gnome-mobi-thumbnailer.c
index f7c4081..67c04bf 100644
--- a/gnome-mobi-thumbnailer.c
+++ b/gnome-mobi-thumbnailer.c
@@ -166,13 +166,6 @@ get_image_section (GInputStream  *stream,
 
        header = get_section_data (G_INPUT_STREAM (stream), sections, 0, &len);
 
-       /* Checking crypto type */
-       if (get_guint16 (header + 0xC) != 0) {
-               g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, "File is encrypted");
-               g_free (header);
-               return -1;
-       }
-
        /* Checking metadata availability */
        if (!(get_guint32 (header + 0x80) & 0x40)) {
                g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, "File has no metadata");