DEV: Remove deprecated method (#14902)

DEV: Remove deprecated method (#14902)

diff --git a/app/models/group.rb b/app/models/group.rb
index 889df66..37e08a2 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -287,11 +287,6 @@ class Group < ActiveRecord::Base
     end
   end
 
-  def self.register_plugin_editable_group_custom_field(custom_field_name, plugin)
-    Discourse.deprecate("Editable group custom fields should be registered using the plugin API", since: "v2.4.0.beta4", drop_from: "v2.5.0")
-    DiscoursePluginRegistry.register_editable_group_custom_field(custom_field_name, plugin)
-  end
-
   def downcase_incoming_email
     self.incoming_email = (incoming_email || "").strip.downcase.presence
   end

GitHub sha: 4724f3cbf7522c4e427cf0a05945d294b0732a94

This commit appears in #14902 which was approved by Falco. It was merged by danielwaterworth.