The White House stayed silent Sunday night on a Daily News investigation into developers' big-money donations to Bronx Borough President Adolfo Carrión, who is President Obama's new urban policy pointman. The News' probe of Carrión's cozy ties to developers with major Bronx construction projects provoked outrage from the politician's critics, but didn't stir a peep from the White House. "We have no comment," White House spokesman Nick Shapiro said. Carrión resigned Sunday as borough president to become the director of the White House Office on Urban Policy on Monday. Richard Lipsky, a city planner in the Bronx, said The News...