Remove references to solidus_gateway, now archived

Author: elia

core/README.md

@@ -40,7 +40,6 @@ source (e.g. `Spree::CreditCard`) using a specific payment method (e.g
 `Solidus::Gateway::Braintree`).
 * `Spree::PaymentMethod` - A base class which is used for implementing payment methods.
 * `Spree::PaymentMethod::CreditCard` - An implementation of a `Spree::PaymentMethod` for credit card payments.
-See https://github.com/solidusio/solidus_gateway/ for officially supported payment method implementations.
 * `Spree::CreditCard` - The `source` of a `Spree::Payment` using `Spree::PaymentMethod::CreditCard` as payment method.
 
 ## Inventory sub-system

core/app/models/spree/payment_method/credit_card.rb

@@ -4,10 +4,6 @@ module Spree
   # An implementation of a `Spree::PaymentMethod` for credit card payments.
   #
   # It's a good candidate as base class for other credit card based payment methods.
-  #
-  # See https://github.com/solidusio/solidus_gateway/ for
-  # officially supported payment method implementations.
-  #
   class PaymentMethod::CreditCard < PaymentMethod
     def payment_source_class
       Spree::CreditCard