Remove unnecessary locales check in specs

We define the available locales in the test environment, so Spanish is
always available in this environment even if it isn't available in the
production environment.

spec/system/verification/level_two_verification_spec.rb

@@ -24,10 +24,7 @@ describe "Level two verification" do
   end
 
   context "In Spanish, with no fallbacks" do
-    before do
-      skip unless I18n.available_locales.include?(:es)
-      allow(I18n.fallbacks).to receive(:[]).and_return([:es])
-    end
+    before { allow(I18n.fallbacks).to receive(:[]).and_return([:es]) }
 
     scenario "Works normally" do
       user = create(:user)