Revert "SNOW-811265 Do not close channel on rebalance (#651)" #678
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This reverts commit 52f0a8a.
After careful consideration, we will revert "not closing channels" before a rebalance. i.e we will continue to close channel in
close()
API of SinkTask.Closing the channel makes the behavior a bit more deterministic, closes resources and now that we have one client enabled, closing of channels wouldn't take a long time. (Probably only the first channel will take time but not subsequent)