[djvulibre] Remove no longer used patches.

[Ville Skyttä]

commit 06563e50979553c247aa4a0a57e37241ac647e3e
Author: Ville Skyttä <ville.skytta at iki.fi>
Date:   Tue Oct 9 23:44:05 2012 +0300

    Remove no longer used patches.

 djvulibre-3.5.18-plugin-manpage.patch |  162 ---------------------------------
 djvulibre-3.5.19-ja-encoding.patch    |   11 --
 djvulibre-configure.patch             |   10 --
 3 files changed, 0 insertions(+), 183 deletions(-)