Delete row ('2305', '20493') from daily_volatility

ticker_id 2305
day 20493
implied_open 0.7032406984809682
implied_high 0.7222901079206332
implied_low 0.6222807083623917
implied_close 0.7095905016275231
historical_open 0.7095905016275231
historical_high 0.7095905016275231
historical_low 0.7095905016275231
historical_close 0.7095905016275231
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