Delete row ('510', '20146') from daily_volatility

ticker_id 510
day 20146
implied_open 0.5825944386964229
implied_high 0.6857787398279419
implied_low 0.5365583658838989
implied_close 0.5381458166705377
historical_open 0.8175371551189585
historical_high 0.8175371551189585
historical_low 0.8175371551189585
historical_close 0.8175371551189585
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