By Jack Barnett The government has not ruled out reversing a tax cut on the UK’s biggest banks as it scrambles to overfill a huge hole in the public finances. Asked today by City A.M. if chancellor Jeremy Hunt and prime minister Rishi Sunak would commit to cutting the bank surcharge, an effective windfall tax, the Treasury said it does “not comment on speculation around changes to tax policy outside of fiscal events”. The pair have made clear difficult decisions are needed to put the public finances on a sustainable path. Last week, Treasury sources told City A.M. nothing was off the table on …