Use same style for project readme, tree readme and regular blob.

app/assets/stylesheets/pages/tree.scss

@@ -4,14 +4,6 @@
     margin-right: -$gl-padding;
   }
 
-  .tree_progress {
-    display: none;
-    margin: 20px;
-    &.loading {
-      display: block;
-    }
-  }
-
   .tree-table {
     margin-bottom: 0;
 

app/views/projects/_readme.html.haml

 - if readme = @repository.readme
-  %article.readme-holder#README
-    .clearfix
-      .pull-right
-         
-        - if can?(current_user, :push_code, @project)
-          = link_to namespace_project_edit_blob_path(@project.namespace, @project, tree_join(@repository.root_ref, readme.name)), class: 'light' do
-            %i.fa-align.fa.fa-pencil
-    .wiki
+  %article.file-holder.readme-holder
+    .file-title
+      = blob_icon readme.mode, readme.name
+      = link_to namespace_project_blob_path(@project.namespace, @project, tree_join(@repository.root_ref, readme.name)) do
+        %strong
+          = readme.name
+    .file-content.wiki
       = cache(readme_cache_key) do
         = render_readme(readme)
 - else

app/views/projects/tree/_readme.html.haml

-%article.file-holder.readme-holder#README
+%article.file-holder.readme-holder
   .file-title
-    = link_to '#README' do
+    = blob_icon readme.mode, readme.name
+    = link_to namespace_project_blob_path(@project.namespace, @project, tree_join(@repository.root_ref, readme.name)) do
       %strong
-        %i.fa.fa-file
         = readme.name
   .file-content.wiki
     = render_readme(readme)