Remove useless `test_supports_primary_key`

`supports_primary_key?` method is defined in `AbstractAdapter` so does
not raise any errors.

1 files changed, 0 insertions, 6 deletions

diff --git a/activerecord/test/cases/primary_keys_test.rb b/activerecord/test/cases/primary_keys_test.rb
index b434f4a6b6..1d72899102 100644
--- a/activerecord/test/cases/primary_keys_test.rb
+++ b/activerecord/test/cases/primary_keys_test.rb
@@ -129,12 +129,6 @@ class PrimaryKeysTest < ActiveRecord::TestCase
     assert_nothing_raised { MixedCaseMonkey.find(1).destroy }
   end
 
-  def test_supports_primary_key
-    assert_nothing_raised do
-      ActiveRecord::Base.connection.supports_primary_key?
-    end
-  end
-
   if ActiveRecord::Base.connection.supports_primary_key?
     def test_primary_key_returns_value_if_it_exists
       klass = Class.new(ActiveRecord::Base) do