[rsyslog] imklog symbol translation

[RB]

>  now supports the translation natively, I would even recommend to DROP
>  the code altogether (maybe after some period of being off by default).
>  That would also result in a good cleanup of MOST of the imklog code (and
>  code, as I said, that actually belongs to a different computing domain).

I guess my question would be what valid reasons there could be for
retaining the functionality, turned off or not.  Appropriately placed
or not, could anyone provide justification for leaving that bit in?
If the end result is getting rid of it, turning it off by default may
be a start but should come with a hard deadline of complete removal -
we all know how unused code rots.