test: remove spec

Author: G-Rath

spec/rubocop/cop/rspec_rails/minitest_assertions_spec.rb

@@ -335,18 +335,6 @@
       RUBY
     end
 
-    it 'registers an offense when using `assert_in_delta` with ' \
-       'a missing delta' do
-      expect_offense(<<~RUBY)
-        assert_in_delta a, b, "whoops, we forgot about the actual delta!"
-        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use `expect(b).to be_within("whoops, we forgot about the actual delta!").of(a)`.
-      RUBY
-
-      expect_correction(<<~RUBY)
-        expect(b).to be_within("whoops, we forgot about the actual delta!").of(a)
-      RUBY
-    end
-
     it 'registers an offense when using `assert_in_delta` with ' \
        'multi-line arguments' do
       expect_offense(<<~RUBY)