Remove now unused spec matcher
Convert specs to RSpec 2.99.2 syntax with Transpec

This conversion is done by Transpec 2.3.7 with the following command:
    transpec

* 40 conversions
    from: == expected
      to: eq(expected)

* 34 conversions
    from: obj.should
      to: expect(obj).to

* 16 conversions
    from: it { should ... }
      to: it { is_expected.to ... }

* 12 conversions
    from: obj.should_receive(:message)
      to: expect(obj).to receive(:message)

* 10 conversions
    from: obj.should_not
      to: expect(obj).not_to

* 7 conversions
    from: its(:attr) { }
      to: describe '#attr' do subject { super().attr }; it { } end

* 7 conversions
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

* 6 conversions
    from: be_true
      to: be_truthy

* 5 conversions
    from: be_false
      to: be_falsey

* 3 conversions
    from: Klass.any_instance.should_receive(:message)
      to: expect_any_instance_of(Klass).to receive(:message)

* 2 conversions
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

* 1 conversion
    from: lambda { }.should
      to: expect { }.to

* 1 conversion
    from: obj.unstub(:message)
      to: allow(obj).to receive(:message).and_call_original

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Convert specs to RSpec 3.1.5 syntax with Transpec

This conversion is done by Transpec 2.3.7 with the following command:
    transpec

* 13 conversions
    from: obj.stub(:message => value)
      to: allow(obj).to receive_messages(:message => value)

For more details: https://github.com/yujinakayama/transpec#supported-conversions