Merge branch 'remove_all_projects_button' into 'master'

Remove button to all projects on Trending Projects page.

Fixes #2001.

See merge request !1860

app/views/explore/projects/trending.html.haml

@@ -13,6 +13,3 @@
   .public-projects
     %ul.bordered-list
       = render @trending_projects
-
-  .center.append-bottom-20
-    = link_to 'Show all projects', explore_projects_path, class: 'btn btn-primary'