[gnome-session] drop unused patches

[Ray Strode]

commit 24cdbadfb516e23467deb354d8046834610d8599
Author: Ray Strode <rstrode at redhat.com>
Date:   Sun Nov 7 15:14:51 2010 -0500

    drop unused patches

 Explicitly-add-lXext-lXau-to-linker-line.patch |   49 -----
 drop-set-has-separator.patch                   |   33 ----
 gdk-display-fix.patch                          |  241 ------------------------
 show-lock.patch                                |  114 -----------
 unresponsive-timeout.patch                     |  119 ------------
 xsmp-stop.patch                                |   21 --
 6 files changed, 0 insertions(+), 577 deletions(-)