Delete row ('87', '20733') from daily_volatility

ticker_id 87
day 20733
implied_open 0.3778132872200236
implied_high 0.8683355802913987
implied_low 0.3778132872200236
implied_close 0.7318148126404658
historical_open 0.2412925195690907
historical_high 0.2412925195690907
historical_low 0.2412925195690907
historical_close 0.2412925195690907
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