init: init project step4: biz code support

hnqz-upms/hnqz-upms-biz/src/main/java/com/qunzhixinxi/hnqz/admin/service/impl/CnbgMobileServiceImpl.java

@@ -23,7 +23,6 @@ import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Service;
 
 import java.util.ArrayList;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;