Fix #3628: Retry button is displayed for failed uploads that cannot succeed even if retried

app/controllers/uploads_controller.rb

@@ -66,12 +66,6 @@ class UploadsController < ApplicationController
     respond_with(@upload)
   end
 
-  def update
-    @upload = Upload.find(params[:id])
-    @upload.process!
-    respond_with(@upload)
-  end
-
   private
 
   def find_post_by_url(normalized_url)

app/views/uploads/show.html.erb

@@ -25,11 +25,6 @@
           <% end %>
         </ul>
       <% end %>
-      <% if @upload.is_downloadable? %>
-        <%= form_tag(upload_path(@upload), :method => :put) do %>
-          <% submit_tag "Retry" %>
-        <% end %>
-      <% end %>
     <% end %>
 
     <p>

test/functional/uploads_controller_test.rb

@@ -94,19 +94,5 @@ class UploadsControllerTest < ActionDispatch::IntegrationTest
         end
       end
     end
-
-    context "update action" do
-      setup do
-        as_user do
-          @upload = create(:source_upload)
-        end
-      end
-
-      should "process an unapproval" do
-        put_auth upload_path(@upload), @user
-        @upload.reload
-        assert_equal("completed", @upload.status)
-      end
-    end
   end
 end