[DISCUSS] Drop older versions of Kafka Connectors (0.9, 0.10) for Flink 1.10

[Stephan Ewen]

Hi all!

We still maintain connectors for Kafka 0.8 and 0.9 in Flink.
I would suggest to drop those with Flink 1.10 and start supporting only
Kafka 0.10 onwards.

Are there any concerns about this, or still a significant number of users
of these versions?

Best,
Stephan