Update gnome2 and gnome2-utils eclass to the latest

Update gnome2 to 1.122 and gnome2-utils to 1.31

CL 60581 (to update pango) depends on this change. Instead of
patching the ebuild file in the CL, we update gnome2.eclass
to delete *la files with gnome2_src_install.

BUG=chromium:245783
TEST=`cbuildbot --remote -g 60791 amd64-generic-full` worked
TEST=`cbuildbot --remote -g 60791 arm-generic-full` works
TEST=`cbuildbot --remote -g 60791 x86-generic-full` works
TEST=`cbuildbot --remote -g 60791 chromiumos-sdk` worked

Change-Id: I68ecd9e5d304dda652cd71aa6eed0a15f76edd15
Reviewed-on: https://gerrit.chromium.org/gerrit/60791
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Jungshik Shin (jungshik at google) <jshin@chromium.org>
Commit-Queue: Jungshik Shin (jungshik at google) <jshin@chromium.org>
2 files changed