Delete now unused method clean_name

app/models/spree/payment_method.rb

@@ -113,11 +113,6 @@ module Spree
       distributors.include?(distributor)
     end
 
-    def self.clean_name
-      scope = "spree.admin.payment_methods.providers"
-      I18n.t(name.demodulize.downcase, scope:)
-    end
-
     private
 
     def distributor_validation

spec/models/spree/payment_method_spec.rb

@@ -131,13 +131,6 @@ RSpec.describe Spree::PaymentMethod do
     expect(pm.errors.to_a).to eq(["Name can't be blank", "At least one hub must be selected"])
   end
 
-  it "generates a clean name for known Payment Method types" do
-    expect(Spree::PaymentMethod::Check.clean_name)
-      .to eq('Cash/EFT/etc. (payments for which automatic validation is not required)')
-    expect(Spree::Gateway::PayPalExpress.clean_name).to eq('PayPal Express')
-    expect(Spree::Gateway::StripeSCA.clean_name).to eq('Stripe SCA')
-  end
-
   it "computes the amount of fees" do
     order = create(:order)