speeds 10s the test suite by avoiding the creation a few unneeded objects

spec/features/moderation/bulk_spec.rb

@@ -34,7 +34,7 @@ feature 'Moderate in bulk' do
   end
 
   scenario "select all/none", :js do
-    create_list(:debate, 20)
+    create_list(:debate, 2)
 
     visit moderation_bulk_path
 

spec/features/moderation/proposals_spec.rb

@@ -80,7 +80,7 @@ feature 'Moderate proposals' do
       end
 
       scenario "select all/none", :js do
-        create_list(:proposal, 20)
+        create_list(:proposal, 2)
 
         visit moderation_proposals_path
 
@@ -98,7 +98,7 @@ feature 'Moderate proposals' do
       end
 
       scenario "remembering page, filter and order" do
-        create_list(:proposal, 55)
+        create_list(:proposal, 52)
 
         visit moderation_proposals_path(filter: 'all', page: '2', order: 'created_at')