去掉声部

src/views/liveClassManager/liveClassManager.vue

@@ -138,10 +138,6 @@ export default {
       }).then(res => {
         if (res.code == 200) {
           this.subjectList = [
-            {
-              id: -1,
-              name: "乐理"
-            },
             ...res.data
           ];
         }