代码优化

aipt-service/src/main/java/com/diagbot/facade/ConceptFacade.java

@@ -14,7 +14,6 @@ import com.diagbot.enums.LexiconTypeEnum;
 import com.diagbot.exception.CommonErrorCode;
 import com.diagbot.exception.CommonException;
 import com.diagbot.service.impl.ConceptServiceImpl;
-import com.diagbot.util.ArrayUtil;
 import com.diagbot.util.BeanUtil;
 import com.diagbot.util.IntegerUtil;
 import com.diagbot.util.ListUtil;