Remove site settings enforce_global_nicknames and discourse_org_access_key

spec/controllers/users_controller_spec.rb

@@ -746,17 +746,14 @@ describe UsersController do
     end
 
     context 'when an Exception is raised' do
-      [ ActiveRecord::StatementInvalid,
-        RestClient::Forbidden ].each do |exception|
-        before { User.any_instance.stubs(:save).raises(exception) }
+      before { User.any_instance.stubs(:save).raises(ActiveRecord::StatementInvalid.new('Oh no')) }
 
-        let(:create_params) {
-          { name: @user.name, username: @user.username,
-            password: "strongpassword", email: @user.email}
-        }
+      let(:create_params) {
+        { name: @user.name, username: @user.username,
+          password: "strongpassword", email: @user.email}
+      }
 
-        include_examples 'failed signup'
-      end
+      include_examples 'failed signup'
     end
 
     context "with custom fields" do