Delete row ('2757', '20307') from daily_volatility

ticker_id 2757
day 20307
implied_open 0.1508078247306817
implied_high 0.1587450786638754
implied_low 0.1349333168642941
implied_close 0.1555701770905979
historical_open 0.1238211613578228
historical_high 0.1238211613578228
historical_low 0.1238211613578228
historical_close 0.1238211613578228
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