Account deactivation query

looks like your doing model validation in the controller.
I would expect this code to read something like
```
deactivation_response = UserDeactivationResponse.new(permitted_params.user_deactivation_response)
if deactivation_response.valid?
  cool!
else
  oh no.... that's almost impossible right.. maybe don't need to do anything
end
current_user.deactivate!
redirect_to root_url notice: t(:'user.account_deactivated')
```