Reduce amount of deprecation output.

spaceship/spec/tunes/device_type_spec.rb

@@ -1,5 +1,12 @@
 describe Spaceship::Tunes::DeviceType do
   describe "type identifiers" do
+    before(:each) do
+      # let's catch those calls to avoid polluting the output
+      # Note: warning has a different signature in newer versions of ruby
+      allow(Warning).to receive(:warn).with(/Spaceship::Tunes::DeviceType has been deprecated./)
+      allow(Warning).to receive(:warn).with(/Spaceship::Tunes::DeviceType has been deprecated./, {:category=>nil})
+    end
+
     it "should be checkable using singleton functions" do
       expect(Spaceship::Tunes::DeviceType.exists?("iphone6")).to be_truthy
     end
@@ -38,8 +45,9 @@
         'desktop'
       ]
 
+      types = Spaceship::Tunes::DeviceType.types
       old_types.each do |identifier|
-        expect(Spaceship::Tunes::DeviceType.types).to include(identifier)
+        expect(types).to include(identifier)
       end
     end
   end