优化删除功能

src/views/prepare-lessons/components/lesson-main/courseware/index.tsx

@@ -106,11 +106,6 @@ export default defineComponent({
         negativeText: '取消',
         onPositiveClick: async () => {
           try {
-            if (forms.coursewareList.length <= 0) {
-              forms.drag = false;
-              message.success('编辑成功');
-              return;
-            }
             const temp: any = [];
             forms.coursewareList.forEach((item: any) => {
               temp.push({

src/views/prepare-lessons/components/lesson-main/train/index.tsx

@@ -50,11 +50,6 @@ export default defineComponent({
         negativeText: '取消',
         onPositiveClick: async () => {
           try {
-            if (forms.trainList.length <= 0) {
-              forms.drag = false;
-              message.success('编辑成功');
-              return;
-            }
             // 保存课件
             await lessonPreTrainingBatchSave({
               coursewareKnowledgeDetailId: prepareStore.getSelectKey,