Remove now unused secret_token.rb.example
Remove now unused secret_token.rb.example

No issue #

curoverse/sso-devise-omniauth-provider,curoverse/sso-devise-omniauth-provider,wtsi-hgi/sso-devise-omniauth-provider,wtsi-hgi/sso-devise-omniauth-provider,wtsi-hgi/sso-devise-omniauth-provider,curoverse/sso-devise-omniauth-provider,wtsi-hgi/sso-devise-omniauth-provider,curoverse/sso-devise-omniauth-provider