Delete row ('1953', '20494') from daily_volatility

ticker_id 1953
day 20494
implied_open 0.2111309546229543
implied_high 0.2254180117027031
implied_low 0.2063686022630381
implied_close 0.2111309546229543
historical_open 0.1984313483298443
historical_high 0.1984313483298443
historical_low 0.1984313483298443
historical_close 0.1984313483298443
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