HongKong’sbiggestbankssaidtheyhaveenoughcurrencynotesonhandtohandleanyextraordinaryincreaseindemandforcash,ascallscirculatedonlineforprotesterstoemptyoutautomatedtellermachines(ATMs)todisruptthebankingsysteminAsia’sfinancialhub.HSBC,thelargestofthecity’sthreecurrency-issuingbanks,saidit“hassufficientsupplyofbanknotesandiscommittedtosupportingitscustomersandthesmoothoperationofthefinancialsysteminHongKong,”accordingtoabankspokeswoman.BankofEastAsia,DBS…