jar出错修改

cqb-paper/src/main/java/com/qmth/cqb/paper/service/ImportPaperService.java

@@ -16,7 +16,6 @@ import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import com.netflix.infix.lang.infix.antlr.EventFilterParser.boolean_expr_return;
 import com.qmth.cqb.base.dao.CourseRepo;
 import com.qmth.cqb.base.model.Course;
 import com.qmth.cqb.question.dao.CoursePropertyRepo;