去除荔园判断

src/components/courseDetail.vue

@@ -4,7 +4,7 @@
       <div class="body_student">
         <div class="student_head">
           <div
-            v-if="screenType != 2 && screenType != 5 && !lytype"
+            v-if="screenType != 2 && screenType != 5"
             class="return"
             @click.stop="
               goTo(
@@ -1189,7 +1189,6 @@ export default {
   },
   data() {
     return {
-      lytype: sessionStorage.getItem("lytype"),
       choose: 0,
       dialogVisibleSk: false,
       dialogVisible: false,