Move feature spec to controller spec

It reduces the runtime (3s instead of 10s).

spec/controllers/spree/admin/orders_controller_spec.rb

@@ -14,6 +14,23 @@ describe Spree::Admin::OrdersController, type: :controller do
         spree_get :edit, id: order
       }.to change { order.reload.state }.from("cart").to("complete")
     end
+
+    describe "view" do
+      render_views
+
+      it "shows only eligible adjustments" do
+        adjustment = create(
+          :adjustment,
+          adjustable: order,
+          label: "invalid adjustment",
+          amount: 0
+        )
+
+        spree_get :edit, id: order
+
+        expect(response.body).to_not match adjustment.label
+      end
+    end
   end
 
   context "#update" do

spec/features/admin/orders_spec.rb

@@ -282,19 +282,6 @@ feature %q{
         end
       end
 
-      scenario "shows only eligible adjustments" do
-        adjustment = create(
-          :adjustment,
-          adjustable: @order,
-          label: "invalid adjustment",
-          amount: 0
-        )
-
-        visit spree.edit_admin_order_path(@order)
-
-        expect(page).to have_no_content adjustment.label
-      end
-
       scenario "cannot split the order in different stock locations" do
         # There's only 1 stock location in OFN, so the split functionality that comes with spree should be hidden
         expect(page).to_not have_selector '.split-item'