Follow up of upstream Magic Modules changes (#4)

* Follow up of GoogleCloudPlatform#8720

* Disable parallelization

Follow up of GoogleCloudPlatform#8381

Since the TFLint provider uses class variables to pass the list of rule names
to the final step, parallelization cannot be used.

mmv1/compiler.rb

@@ -148,7 +148,7 @@
 # products_for_version entries are a hash of product definitions (:definitions)
 # and provider config (:overrides) for the product
 # rubocop:disable Metrics/BlockLength
-products_for_version = Parallel.map(all_product_files, in_processes: 8) do |product_name|
+products_for_version = all_product_files.map do |product_name|
   product_override_path = ''
   product_override_path = File.join(override_dir, product_name, 'product.yaml') if override_dir
   product_yaml_path = File.join(product_name, 'product.yaml')

mmv1/provider/tflint.rb

@@ -50,8 +50,6 @@ def compile_common_files(output_folder, products, common_compile_file)
     def copy_common_files(output_folder, generate_code, generate_docs)
       Google::LOGGER.info 'Copying common files.'
       copy_file_list(output_folder, [
-                       ['validation.go',
-                        'third_party/terraform/utils/validation.go'],
                        ['verify/validation.go',
                         'third_party/terraform/verify/validation.go'],
                     ])