Removed docs for removed urlsafe_csrf_token config
Removed docs for removed urlsafe_csrf_token config

The config was deprecated in c4d9dac and removed in 4f12bcd but the
documentation for it was missed

Erol/rails,yawboakye/rails,georgeclaghorn/rails,Erol/rails,MSP-Greg/rails,yahonda/rails,rails/rails,yawboakye/rails,BlakeWilliams/rails,rails/rails,MSP-Greg/rails,georgeclaghorn/rails,esparta/rails,yahonda/rails,georgeclaghorn/rails,rails/rails,Erol/rails,esparta/rails,BlakeWilliams/rails,yahonda/rails,esparta/rails,BlakeWilliams/rails,MSP-Greg/rails,MSP-Greg/rails,esparta/rails,yawboakye/rails,rails/rails,georgeclaghorn/rails,yawboakye/rails,Erol/rails,yahonda/rails,BlakeWilliams/rails