Delete row ('1802', '20731') from daily_volatility

ticker_id 1802
day 20731
implied_open 0.5333834643106214
implied_high 0.549257972177009
implied_low 0.5286211119507053
implied_close 0.5333834643106214
historical_open 0.4682979820584325
historical_high 0.4682979820584325
historical_low 0.4682979820584325
historical_close 0.4682979820584325
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