Delete row ('979', '20735') from daily_volatility

ticker_id 979
day 20735
implied_open 0.2825662400216983
implied_high 0.284153690808337
implied_low 0.2603419290087557
implied_close 0.2666917321553107
historical_open 0.2254180117027031
historical_high 0.2254180117027031
historical_low 0.2254180117027031
historical_close 0.2254180117027031
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