Delete row ('193', '20529') from daily_volatility

ticker_id 193
day 20529
implied_open 0.6905410921878581
implied_high 0.7127654032008007
implied_low 0.6238681591490305
implied_close 0.6651418796016381
historical_open 0.9032594975974513
historical_high 0.9032594975974513
historical_low 0.9032594975974513
historical_close 0.9032594975974513
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