Remove deprecated method `supports_primary_key?`

3 files changed, 4 insertions, 9 deletions

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 1b74c3fcbb..aac1296243 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,7 @@
+*   Remove deprecated method `supports_primary_key?`.
+
+    *Rafael Mendonça França*
+
 *   Remove deprecated method `supports_migrations?`.
 
     *Rafael Mendonça França*
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index ece01500e7..a848dacff3 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -196,11 +196,6 @@ module ActiveRecord
         self.class::ADAPTER_NAME
       end
 
-      def supports_primary_key? # :nodoc:
-        true
-      end
-      deprecate :supports_primary_key?
-
       # Does this adapter support DDL rollbacks in transactions? That is, would
       # CREATE TABLE or ALTER TABLE get rolled back by a transaction?
       def supports_ddl_transactions?
diff --git a/activerecord/test/cases/primary_keys_test.rb b/activerecord/test/cases/primary_keys_test.rb
index a36d786b40..7f6c2382ca 100644
--- a/activerecord/test/cases/primary_keys_test.rb
+++ b/activerecord/test/cases/primary_keys_test.rb
@@ -156,10 +156,6 @@ class PrimaryKeysTest < ActiveRecord::TestCase
     assert_nothing_raised { MixedCaseMonkey.find(1).destroy }
   end
 
-  def test_deprecate_supports_primary_key
-    assert_deprecated { ActiveRecord::Base.connection.supports_primary_key? }
-  end
-
   def test_primary_key_returns_value_if_it_exists
     klass = Class.new(ActiveRecord::Base) do
       self.table_name = "developers"