Delete row ('738', '20430') from daily_volatility

ticker_id 738
day 20430
implied_open 0.4079748521661599
implied_high 0.4222619092459087
implied_low 0.4047999505928824
implied_close 0.4159121060993537
historical_open 0.5571952261102028
historical_high 0.5571952261102028
historical_low 0.5571952261102028
historical_close 0.5571952261102028
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