1 files changed, 0 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index caa125576c..c15b4a1a05 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -854,9 +854,6 @@ module ActiveRecord
           end
         end
 
-        class MysqlJson < Type::Json # :nodoc:
-        end
-
         class MysqlString < Type::String # :nodoc:
           def serialize(value)
             case value