It was to be an epic legal showdown with hundreds of millions of euros at stake: the ultimate Celtic tiger hangover – the collapsed Quinn Insurance versus big four accountancy giant PWC. But ten years into the litigation, the case has ended with a whimper rather than a bang. The case came before Commercial Court judge Justice Denis McDonald this morning where the parties informed him that the matter had been resolved. It was over in minutes. The settlement figure is in the tens of millions of euros. The company, which is in administration, will now go before the President…