Use symfony 3.4 configuration deprecation

Author: abluchet

src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php

@@ -58,13 +58,9 @@ public function getConfigTreeBuilder()
                     ->defaultValue('0.0.0')
                 ->end()
                 ->scalarNode('default_operation_path_resolver')
-                    ->beforeNormalization()->always(function ($v) {
-                        @trigger_error('The use of the `default_operation_path_resolver` has been deprecated in 2.1 and will be removed in 3.0. Use `path_segment_name_generator` instead.', E_USER_DEPRECATED);
-
-                        return $v;
-                    })->end()
                     ->defaultValue('api_platform.operation_path_resolver.underscore')
-                    ->info('[Deprecated] Specify the default operation path resolver to use for generating resources operations path.')
+                    ->setDeprecated('The use of the `default_operation_path_resolver` has been deprecated in 2.1 and will be removed in 3.0. Use `path_segment_name_generator` instead.')
+                    ->info('Specify the default operation path resolver to use for generating resources operations path.')
                 ->end()
                 ->scalarNode('name_converter')->defaultNull()->info('Specify a name converter to use.')->end()
                 ->scalarNode('path_segment_name_generator')->defaultValue('api_platform.path_segment_name_generator.underscore')->info('Specify a path name generator to use.')->end()
@@ -87,15 +83,9 @@ public function getConfigTreeBuilder()
                 ->end()
                 ->booleanNode('enable_fos_user')->defaultValue(class_exists(FOSUserBundle::class))->info('Enable the FOSUserBundle integration.')->end()
                 ->booleanNode('enable_nelmio_api_doc')
-                    ->beforeNormalization()->always(function ($v) {
-                        if ($v) {
-                            @trigger_error('Enabling the NelmioApiDocBundle integration has been deprecated in 2.2 and will be removed in 3.0. NelmioApiDocBundle 3 has native support for API Platform.', E_USER_DEPRECATED);
-                        }
-
-                        return $v;
-                    })->end()
                     ->defaultValue(false)
-                    ->info('[Deprecated] Enable the NelmioApiDocBundle integration.')
+                    ->setDeprecated('Enabling the NelmioApiDocBundle integration has been deprecated in 2.2 and will be removed in 3.0. NelmioApiDocBundle 3 has native support for API Platform.')
+                    ->info('Enable the NelmioApiDocBundle integration.')
                 ->end()
                 ->booleanNode('enable_swagger')->defaultValue(true)->info('Enable the Swagger documentation and export.')->end()
                 ->booleanNode('enable_swagger_ui')->defaultValue(class_exists(TwigBundle::class))->info('Enable Swagger ui.')->end()