Ignore master variants exporting to DFC

engines/dfc_provider/app/services/variant_fetcher.rb

@@ -9,7 +9,7 @@ class VariantFetcher
   end
 
   def scope
-    Spree::Variant.
+    Spree::Variant.not_master.
       joins(product: :supplier).
       where('enterprises.id' => @enterprise.id)
   end

engines/dfc_provider/spec/services/variant_fetcher_spec.rb

@@ -14,8 +14,6 @@ describe VariantFetcher do
   it "returns the variants of a supplier" do
     product = create(:product, supplier: enterprise)
 
-    pending "ignoring of the master variant"
-    # it currently returns two variants instead of one
     expect(subject.scope.count).to eq 1
     expect(subject.scope).to eq product.variants
   end