[DISCUSS] KIP-720: Deprecate MirrorMaker v1

[Ryanne Dolan]

Hey y'all, I'd like to start the discussion on KIP-720, which proposes to
deprecate the original MirrorMaker in the upcoming 3.0 major release.

https://cwiki.apache.org/confluence/display/KAFKA/KIP-720%3A+Deprecate+MirrorMaker+v1

Thanks!
Ryanne