If we are both having a bootloader and a U-Boot environment file, we
can end up with two entries using "--source rawcopy" and "--no-table",
and since they reuse the same file [1], their cleanup handlers will
try to delete the same file twice. So make sure we only do it once.
[1] Although they reuse the same file, the resulting output is
correct, so it appears the file is accessed in properly sequential
order.
(From OE-Core rev: f1a3eac376c4600cdb128d870ad9b7e9d51ed9c0)
Signed-off-by: Kristian Amlie <kristian.amlie@mender.io>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>