bitbake-diffsigs: drop naive logic for removing duplicate files

This logic doesn't work in practice, certainly not with current versions
where sigdata files are preserved in the stamps directory and therefore
there will often be multiple sigdata files - you can now easily get
files for the same signature from sstate and the stamps directory with the
result that bitbake-diffsigs reports nothing has changed. Instead, let's
change the find_siginfo function in OE-Core to simply not return
duplicates so we don't have to filter them out here.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions