Removed pykickstart-related code as it's replaced by
new kickstart parser.
(From OE-Core rev: 30bb1f3b6b832f9be691350581458c5fdaaaad70)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>