修复给分曲线

stmms-web/src/main/webapp/WEB-INF/views/modules/exam/qualityChart.jsp

@@ -67,7 +67,6 @@ $.post('${ctx}/admin/exam/quality/getChart', {subjectCode: subjectCode,groupNumb
         var option  = {
             name:marker.loginName,
             type:'line',
-            stack: '总量',
             data:scorePercents
         }
         markerArray.push(option);