kvclient: disable DistSQL for test

[andrewbaptist]

DistSQL does not retry on setup errors. Ideally it would either work over partitions or retry while excluding the node rather than failing immediately during Inbox.Init.

Part of: #124246

Release note: None

[cockroach-teamcity]

This change is 

[andrewbaptist]

I don't think we need to backport, but at least this change ensures that DIstSender internally retries on partitions.

@yuzefovich - Do you have thoughts on whether we should attempt to change DistSQL to pass this test?

[andrewbaptist]

Thansk @yuzefovich! I changed the Partitioner error to include rpc error and it works as you described.

[andrewbaptist]

bors r=yuzefovich,kvoli

TFTR!

[craig[bot]]

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