Delete row ('6', '20607') from daily_volatility

ticker_id 6
day 20607
implied_open 1.381082184375716
implied_high 1.385844536735633
implied_low 1.311234349763611
implied_close 1.319171603696805
historical_open 1.428705707974879
historical_high 1.428705707974879
historical_low 1.428705707974879
historical_close 1.428705707974879
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