DOVER, Del. — A committee charged with representing tens of thousands of alleged victims of child sex abuse in the Boy Scouts of America bankruptcy asked the judge on Wednesday to terminate the BSA’s exclusive rights to file a reorganization plan, so that it can file its own.The committee’s court filing came hours after attorneys for the Boy Scouts filed a fifth version of a proposed bankruptcy plan, which contains settlements the committee describes as “grossly unfair.”The committee asserted that it is the only party in …