How can I delete the previous bank information for our IRA when that bank has been taken over by another and the new bank now has the IRA?

If you received a 1099-R from a different payer than you did last year, enter the new 1099-R and delete the previous year 1099-R form.    If it is for your contributions, you don't need the address of the bank that holds your IRA.   If you are asking about something else, please let us know.  

For updating direct deposit information, click that link.