Delete row ('9', '20692') from daily_volatility

ticker_id 9
day 20692
implied_open 0.2460548719290069
implied_high 0.252404675075562
implied_low 0.2222431101294256
implied_close 0.2397050687824519
historical_open 0.3540015254204422
historical_high 0.3540015254204422
historical_low 0.3540015254204422
historical_close 0.3540015254204422
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