Delete row ('2387', '19997') from daily_volatility

ticker_id 2387
day 19997
implied_open 0.3873379919398561
implied_high 0.4047999505928824
implied_low 0.3794007380066624
implied_close 0.3952752458730499
historical_open 0.2857411415949758
historical_high 0.2857411415949758
historical_low 0.2857411415949758
historical_close 0.2857411415949758
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