Delete row ('2305', '20570') from daily_volatility

ticker_id 2305
day 20570
implied_open 0.8873849897310637
implied_high 0.9397708656901427
implied_low 0.8207120566922361
implied_close 0.9365959641168651
historical_open 1.166776328179485
historical_high 1.166776328179485
historical_low 1.166776328179485
historical_close 1.166776328179485
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