Getting rid of the kind of hackneyed stereotypes used by the late Bernard Manning forced comedians to raise their game.Overstuffed: Bernard Manning at home. Photograph: Eamonn MacCabeInevitably, in the wake of Bernard Manning's death, the old guard will pay their respects. Take Jim "Bullseye" Bowen on Newsnight, talking about how Manning thrived in an era "before the PC brigade stifled all free thought". We'll hear a…