[MD settings] remove selectedSite property

chrome/browser/resources/settings/site_settings/all_sites.html

Index: chrome/browser/resources/settings/site_settings/all_sites.html
diff --git a/chrome/browser/resources/settings/site_settings/all_sites.html b/chrome/browser/resources/settings/site_settings/all_sites.html
index 3e8415d85409701cbcd0474e80db7b694982af6d..42c9bcd461057fa9a30884c79376a57b32ee8c5c 100644
--- a/chrome/browser/resources/settings/site_settings/all_sites.html
+++ b/chrome/browser/resources/settings/site_settings/all_sites.html
@@ -11,8 +11,7 @@
         display: block;
       }
     </style>
-    <site-list id="siteList" all-sites
-        category="all-sites" selected-site="{{selectedSite}}">
+    <site-list id="siteList" all-sites category="all-sites">
     </site-list>
   </template>
   <script src="all_sites.js"></script>