Remove ProMembership Models (#7989)

app/models/pro_membership.rb

@@ -1,3 +0,0 @@
-class ProMembership < ApplicationRecord
-  belongs_to :user
-end

app/models/user.rb

@@ -92,7 +92,6 @@ class User < ApplicationRecord
   has_many :webhook_endpoints, class_name: "Webhook::Endpoint", foreign_key: :user_id, inverse_of: :user, dependent: :delete_all
 
   has_one :counters, class_name: "UserCounter", dependent: :destroy
-  has_one :pro_membership, dependent: :destroy
 
   mount_uploader :profile_image, ProfileImageUploader
 

spec/services/users/delete_spec.rb

@@ -108,8 +108,6 @@ RSpec.describe Users::Delete, type: :service do
       associations = []
 
       names.each do |association|
-        next if association.name == :pro_membership
-
         if user.public_send(association.name).present?
           associations.push(*user.public_send(association.name))
         else