By Valentina Za MILAN (Reuters) – Intesa Sanpaolo sought to reassure investors over its ability to hit shareholder reward targets on Friday, after shares in Italy’s top bank fell on concerns about large asset disposals to cut risks. Shares in Intesa fell by 2% after Bloomberg reported Intesa was cutting as much as 20 billion euros ($22 billion) in risk-weighted assets to address supervisory remarks about its inadequate risk models. Italian daily Il Sole 24 Ore reported on Thursday the European Central Bank had taken issue with the risk models of several Italian banks, prompting lenders to cut …