Why would the bank spend more money to tear it down instead of trying to make some of their money back by selling it? That's what banks try to do with other buildings.
Here is a more likely outcome: http://www.gadling.com/2011/03/08/abandoned-caracas-skyscrap...
Note the case of the Ryugyong Hotel, demonstrating that such buildings can be abandoned for long amounts of time without anything needing to be done to them.