Remove IP tracking columns from users table (#16409)

app/controllers/api/v1/admin/accounts_controller.rb

app/controllers/auth/sessions_controller.rb

app/controllers/concerns/user_tracking_concern.rb

app/helpers/admin/dashboard_helper.rb

app/models/account.rb

app/models/account_filter.rb

app/models/user.rb

app/models/user_ip.rb

app/serializers/rest/admin/account_serializer.rb

app/serializers/rest/admin/ip_serializer.rb

app/views/admin/accounts/show.html.haml

app/views/admin_mailer/new_pending_account.text.erb

app/workers/scheduler/ip_cleanup_scheduler.rb

config/initializers/devise.rb

db/migrate/20210616214526_create_user_ips.rb

...te/20210616214135_remove_current_sign_in_ip_from_users.rb

db/schema.rb

db/views/user_ips_v01.sql

spec/controllers/auth/sessions_controller_spec.rb