fix app_config spec

spec/models/app_config_spec.rb

@@ -144,28 +144,6 @@ describe AppConfig do
     end
   end
 
-  context 'configurations which are arrays' do
-
-    it 'should be set to be admins or community_spotlight' do
-      AppConfig::ARRAY_VARS.should =~ [:community_spotlight, :admins]
-    end
-
-    context 'on heroku' do
-      before do
-        ENV['admins'] = "maxwell#{EnviromentConfiguration::ARRAY_SEPERATOR}daniel"
-        EnviromentConfiguration.stub(:heroku?).and_return(true)
-      end
-
-      after do
-        EnviromentConfiguration.stub(:heroku?).and_return(false)
-      end
-
-      it 'converts a string with ARRAY_SEPERATOR to an array' do
-        AppConfig[:admins].should be_a Array
-      end
-    end
-  end
-
   describe ".pod_uri" do
     it "properly parses the pod_url" do
       AppConfig.pod_uri = nil