Delete row ('2763', '20430') from daily_volatility

ticker_id 2763
day 20430
implied_open 0.1523952755173204
implied_high 0.1650948818104304
implied_low 0.1428705707974879
implied_close 0.1539827263039592
historical_open 0.1317584152910166
historical_high 0.1317584152910166
historical_low 0.1317584152910166
historical_close 0.1317584152910166
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