Revert "Add block from bot follow settings"

This reverts commit ff994d78fa.

app/models/concerns/has_user_settings.rb

@@ -235,14 +235,6 @@ module HasUserSettings
     settings['disallow_unlisted_public_searchability']
   end
 
-  def setting_lock_follow_from_bot
-    settings['lock_follow_from_bot']
-  end
-
-  def setting_stop_deliver_to_bot
-    settings['stop_deliver_to_bot']
-  end
-
   def allows_report_emails?
     settings['notification_emails.report']
   end

app/models/user_settings.rb

@@ -40,8 +40,6 @@ class UserSettings
   setting :unsafe_limited_distribution, default: false
   setting :dtl_force_with_tag, default: :none, in: %w(full searchability none)
   setting :dtl_force_subscribable, default: false
-  setting :lock_follow_from_bot, default: false
-  setting :stop_deliver_to_bot, default: false
 
   setting_inverse_alias :indexable, :noindex