Well on the airwaves at least. While the Prime Minister was reacting to the latest grim economic news on LBC, the Mayor of London was able to grandstand on the Daybreak sofa. Boris informed viewers that he doesn’t want Dave’s job just yet, saying he does not want to be PM “at the moment”. He said it is “inconceivable” that he would get the job. “That’s what they said about you being Mayor” replied Kate Garraway. Quite…