CLDC-3499: Remove 2020 test from sales_log_spec

spec/models/sales_log_spec.rb

@@ -944,7 +944,7 @@ RSpec.describe SalesLog, type: :model do
     end
 
     context "when form end date is in the past" do
-      let(:saledate) { Time.zone.local(2020, 4, 1) }
+      let(:saledate) { Time.zone.local(archived_collection_start_year, 4, 1) }
 
       before do
         allow(log).to receive_message_chain(:form, :new_logs_end_date).and_return(Time.zone.now - 1.day)