Removed imports of wic.kickstart from plugins as they're
not used in the code.
(From OE-Core rev: 33d8784470c506fabcf9627e754628cdea61dd07)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>