It doesn't matter if we can't remove the temprorary file, for some reason,
so catch the exception and ignore it.
Partially addresses [YOCTO #1468]
(Bitbake rev: 4394e38b038e1bc9845adf01d73363157d98c96d)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>