libgnomekbd: delete older 2.26.0 version

* there is 2.32.0 version in libgnome and this one was broken for long time
  it depends on gconf-dbus which was removed 2,5 years ago, now when
  newer recipe was blacklisted this started to be pulled into the build

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>