UX: Small topic map improvements and fixes (#28215)

plugins/styleguide/assets/javascripts/discourse/lib/dummy-data.js

@@ -168,32 +168,7 @@ export function createData(store) {
     canBookmark: true,
     canManage: true,
     canDelete: true,
-    createdByUsername: user.username,
-    createdByAvatarTemplate: user.avatar_template,
-    lastPostUsername: user.username,
-    lastPostAvatarTemplate: user.avatar_template,
-    topicReplyCount: 123,
-    topicViews: 3456,
-    participantCount: 10,
-    topicLikeCount: 14,
-    topicLinkLength: 5,
-    topicPostsCount: 4,
-    participants: [createUser(), createUser(), createUser(), createUser()],
     post_number: 1,
-    topicLinks: [
-      {
-        title: "Evil Trout",
-        url: "https://eviltrout.com",
-        domain: "eviltrout.com",
-        clicks: 1024,
-      },
-      {
-        title: "Cool Site",
-        url: "http://coolsite.example.com",
-        domain: "coolsite.example.com",
-        clicks: 512,
-      },
-    ],
   };
 
   const postModel = store.createRecord("post", {