Delete row ('2717', '20503') from daily_volatility

ticker_id 2717
day 20503
implied_open 0.3540015254204422
implied_high 0.3540015254204422
implied_low 0.2333552656358969
implied_close 0.284153690808337
historical_open 0.2746289860885045
historical_high 0.2746289860885045
historical_low 0.2746289860885045
historical_close 0.2746289860885045
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