[libchamplain] Remove generated files from VCS

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 5de9dd2aece22a419c42a8b4df25bc24471044ab
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Feb 4 14:51:02 2014 +0000

    Remove generated files from VCS
    
    These files are generated by autogen.sh and therefore its a bad idea to
    keep them in VCS. You end up having redundant diffs to deal with when
    using different versions of autotoools.

 INSTALL       |  365 ---------------------------------------------------------
 m4/gtk-doc.m4 |   67 -----------
 2 files changed, 0 insertions(+), 432 deletions(-)