chore: remove some periodical logs

[xxchan]

#13953

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What's changed and what's your intention?

Checklist

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[BugenZhao]

Also this one:

risingwave/src/connector/src/parser/plain_parser.rs

Line 163 in 4e18cff

tracing::info!("parse_one_with_txn");

[Li0k]

LGTM,thanks