Fix spec to not count the number of sponsors

Author: yasulab

spec/features/top_spec.rb

@@ -4,7 +4,7 @@
   describe "GET /" do
     scenario "Sponser links should be exist" do
       visit "/"
-      expect(page).to have_css 'section.sponsors_logo a[href]', count: 7
+      expect(page).to have_css 'section.sponsors_logo a[href]'
     end
   end
 end