Clearco co-founder Andrew D’Souza tells TechCrunch that he has stepped back from his role as chief executive at the fintech company. Michele Romanow, the co-founder and president of Clearco, is now chief executive of Clearco. D’Souza, meanwhile, has assumed an executive chairman role and continues to be the largest shareholder in the company, he tells TechCrunch. The move comes seven…