Remove: #454 リンクプレビューを生成する設定の削除、無効化 (#458)

app/models/concerns/account/other_settings.rb

@@ -15,13 +15,6 @@ module Account::OtherSettings
       false
     end
 
-    def link_preview?
-      return user.setting_link_preview if local? && user.present?
-      return settings['link_preview'] if settings.present? && settings.key?('link_preview')
-
-      true
-    end
-
     def allow_quote?
       return user.setting_allow_quote if local? && user.present?
       return settings['allow_quote'] if settings.present? && settings.key?('allow_quote')
@@ -95,7 +88,6 @@ module Account::OtherSettings
         'hide_following_count' => hide_following_count?,
         'hide_followers_count' => hide_followers_count?,
         'translatable_private' => translatable_private?,
-        'link_preview' => link_preview?,
         'allow_quote' => allow_quote?,
         'emoji_reaction_policy' => Setting.enable_emoji_reaction ? emoji_reaction_policy.to_s : 'block',
       }

app/models/concerns/user/has_settings.rb

@@ -135,10 +135,6 @@ module User::HasSettings
     settings['translatable_private']
   end
 
-  def setting_link_preview
-    settings['link_preview']
-  end
-
   def setting_dtl_force_visibility
     settings['dtl_force_visibility']&.to_sym || :unchange
   end

app/models/user_settings.rb

@@ -12,7 +12,6 @@ class UserSettings
   setting :theme, default: -> { ::Setting.theme }
   setting :noindex, default: -> { ::Setting.noindex }
   setting :translatable_private, default: false
-  setting :link_preview, default: true
   setting :bio_markdown, default: false
   setting :discoverable_local, default: false
   setting :hide_statuses_count, default: false