package/libbytesize: bump version to 2.5

Release notes:
https://github.com/storaged-project/libbytesize/releases/tag/2.4
https://github.com/storaged-project/libbytesize/releases/tag/2.5

Removed patch which was applied upstream:
https://github.com/storaged-project/libbytesize/commit/f2b6600f5483fc68c46d596d578be10546f5ac43



Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>