libbytesize: remove bbappend
libbytesize: remove bbappend

NILRT no longer ships a libbytesize package. And if we did, we would
probably not care that it depends on python3 - since that is an accepted
dependency for modern NILRT runmodes.

Remove the bbappend because it is now superfluous.

Signed-off-by: Alex Stewart <04cdb2793e4fb0120cc30d1c823099f3862701f4@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt