删除无效的事件

src/views/iot/diagnoseThreshold/dialog.addThreshold.vue

@@ -18,7 +18,7 @@
             <el-col :span="19">
               <el-form-item  prop="timeRange" label="有效时段">
                 <el-time-picker style="width:100%"  v-model="formData.timeRange" value-format="HH:mm:ss"
-                               is-range  start-placeholder="开始时间" end-placeholder="结束时间" @change="startDateChanged">
+                               is-range  start-placeholder="开始时间" end-placeholder="结束时间">
                 </el-time-picker>
               </el-form-item>
             </el-col>