The problem with filter_out is that it expands the variable meaning overrides
to sub components can get lost. This has happening to the security flags
meaning directfb failed in lsb builds.
Use _remove instead of filter_out since it gives much more predictable results.
(From OE-Core rev: 9484fb04c0ed8b3e08c6773662dc7a0f01cb39a8)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
6773af5d8c