[OE-core] Why do we use sysklogd as the default syslog?

[ChenQi]

Hi All,

I just noticed that we are using sysklogd as the default syslog.
meta/recipes-extended/packagegroups/packagegroup-core-full-cmdline.bb:VIRTUAL-RUNTIME_syslog 
?= "sysklogd"

sysklogd has stopped development for about 4 years, and as far as I can 
see, nobody is maintaining it.
Is there some specific reason why we want to keep it as the default 
syslog for our reference images? small size?

Best Regards,
Chen Qi