Remove unused 'cast_code' variable

1 files changed, 0 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb
index 9b3724777a..a438de7c28 100644
--- a/activerecord/lib/active_record/attribute_methods/read.rb
+++ b/activerecord/lib/active_record/attribute_methods/read.rb
@@ -67,8 +67,6 @@ module ActiveRecord
           # we first define with the __temp__ identifier, and then use alias method to
           # rename it to what we want.
           def define_method_attribute(attr_name)
-            cast_code = attribute_cast_code(attr_name)
-
             generated_attribute_methods.module_eval <<-STR, __FILE__, __LINE__ + 1
               def __temp__
                 #{internal_attribute_access_code(attr_name, attribute_cast_code(attr_name))}