Remove IP tracking columns from users table (#16409)

app/models/user_ip.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: user_ips
+#
+#  user_id :bigint(8)        primary key
+#  ip      :inet
+#  used_at :datetime
+#
+
+class UserIp < ApplicationRecord
+  self.primary_key = :user_id
+
+  belongs_to :user, foreign_key: :user_id
+
+  def readonly?
+    true
+  end
+end