AIB and Bank of Ireland’s trading updates this week weren’t as dramatic as their half-year results.  Half-year results were all about Covid. In their half-year results, both banks said Covid had significantly hit the value of their loan book. Bank of Ireland wrote down its loans by €937 million and AIB by €1.2 billion. The banks took a lot of the pain upfront at the half-year. So this week’s results are less about Covid than about the coming years. The third-quarter results didn’t look too bad on the surface. Each bank had a pickup in activity, each bank has tonnes…