remove date button from dialog.html

examples/hello-mui/examples/dialog.html

@@ -36,8 +36,6 @@
 				<button id='confirmBtn' type="button" class="mui-btn mui-btn-blue mui-btn-outlined">确认消息框</button>
 				<button id='promptBtn' type="button" class="mui-btn mui-btn-blue mui-btn-outlined">输入对话框</button>
 				<button id='toastBtn' type="button" class="mui-btn mui-btn-blue mui-btn-outlined">自动消失提示框</button>
-				<button id='pickDateBtn' type="button" class="mui-btn mui-btn-blue mui-btn-outlined">日期选择框</button>
-				<button id='pickTimeBtn' type="button" class="mui-btn mui-btn-blue mui-btn-outlined">时间选择框</button>
 				<div id="info">
 
 				</div>