On orders from the Justice Dept., the U. S. Trade Representative has quietly kicked the registered agents of foreign companies and countries off its business advisory committees. Last April, the Center for Public Integrity, a watchdog group, circulated a report charging that the USTR panels included paid representatives of Japanese, Brazilian, and even Iraqi interests. The White House asked Justice for a ruling, and it informed the USTR's office that having such lobbyists on advisory committees was illegal. USTR Carla A. Hills, herself a former representative of South Korea's Daewoo Corp., got the lobbyists off the committees and declared that none will be appointed from now on.