fix(接口定义): 修复接口定义高级搜索可以删除全部条件的缺陷 (#16089)

--bug=1015129 --user=王孝刚 【接口测试】各页面的高级搜索-筛选条件-只剩一个时-不可删除
https://www.tapd.cn/55049933/s/1206401
--bug=1015128 --user=王孝刚
【UI测试】场景列表/场景导入/测试报告页面的高级搜索-筛选条件只剩一个时不可删除
https://www.tapd.cn/55049933/s/1206467

Co-authored-by: wxg0103 <727495428@qq.com>

frontend/src/business/components/common/components/search/MsTableAdvSearchBar.vue

@@ -11,7 +11,8 @@
                          @updateKey="changeSearchItemKey" :custom="condition.custom"/>
             </el-col>
             <el-col :span="2">
-              <i class="el-icon-close delete-icon" @click="remove(component)"></i>
+              <i class="el-icon-close delete-icon" @click="remove(component)"
+                 v-if="optional.components.length !==1"></i>
             </el-col>
           </el-row>
         </div>