refactor: 移除试题序号输入项

src/views/safetyExam/paperManagement/question-form.vue

@@ -7,14 +7,6 @@
     class="question-form"
     :disabled="isView"
   >
-    <el-form-item label="序号：" prop="sort">
-      <el-input
-        v-model="innerValue.sort"
-        placeholder="请输入序号"
-        :disabled="isView || isImported"
-      />
-    </el-form-item>
-
     <el-form-item label="试题内容：" prop="content">
       <el-input
         v-model="innerValue.content"