Rename Problem to Translation

app/views/problems/index.html.erb

@@ -1,24 +0,0 @@
-<h1>Listing problems</h1>
-
-<%= render 'problem_pagination' %>
-<table class="table table-striped table-bordered">
-  <thead>
-    <tr>
-      <th>ID</th>
-      <th>Title</th>
-    </tr>
-  </thead>
-
-  <tbody>
-    <% @problems.each do |problem| %>
-      <tr>
-        <td><%= problem.id %></td>
-        <td><%= link_to problem.title, problem %></td>
-      </tr>
-    <% end %>
-  </tbody>
-</table>
-<%= render 'problem_pagination' %>
-<br>
-
-<%= link_to 'New Problem', new_problem_path, class: 'btn btn-default' %>