Remove unused method from api/base_controller

app/controllers/spree/api/base_controller.rb

@@ -30,15 +30,6 @@ module Spree
         end
       end
 
-      def map_nested_attributes_keys(klass, attributes)
-        nested_keys = klass.nested_attributes_options.keys
-        attributes.inject({}) do |h, (k, v)|
-          key = nested_keys.include?(k.to_sym) ? "#{k}_attributes" : k
-          h[key] = v
-          h
-        end.with_indifferent_access
-      end
-
       private
 
       def set_content_type

spec/controllers/api/base_controller_spec.rb

@@ -61,16 +61,4 @@ describe Api::BaseController do
     expect(json_response).to eq( "error" => "The resource you were looking for could not be found." )
     expect(response.status).to eq(404)
   end
-
-  it "maps symantec keys to nested_attributes keys" do
-    klass = double(nested_attributes_options: { line_items: {},
-                                                bill_address: {} })
-    attributes = { 'line_items' => { id: 1 },
-                   'bill_address' => { id: 2 },
-                   'name' => 'test order' }
-
-    mapped = subject.map_nested_attributes_keys(klass, attributes)
-    expect(mapped.key?('line_items_attributes')).to be_truthy
-    expect(mapped.key?('name')).to be_truthy
-  end
 end