Mark David With her oldest of four daughters off at college and her deported and newly minted ex-husband out of the picture (but still trying to stay pop culturally relevant while living in Italy), “The Real Housewives of New Jersey” star Teresa Giudice has put her giant Towaco, N.J., mansion on the market at just under $2.5 million.This in not the first time Giudice has attempted to sell the leafy 3.75-acre suburban spread that’s about 25 miles (and at least and hour’s drive) northeast of