Avoid configuration for php 7 (#902)

Author: jordisala1991

tests/App/AppKernel.php

@@ -98,12 +98,6 @@ protected function configureContainer(ContainerBuilder $container, LoaderInterfa
             $loader->load(__DIR__.'/config/config_symfony_v4.yaml');
         }
 
-        if (version_compare(\PHP_VERSION, '8.0.0', '>=')) {
-            $loader->load(__DIR__.'/config/config_php8.yaml');
-        } else {
-            $loader->load(__DIR__.'/config/config_php7.yaml');
-        }
-
         if (class_exists(HttpCacheHandler::class)) {
             $loader->load(__DIR__.'/config/config_sonata_block_v4.yaml');
         }

tests/App/config/config.yaml

@@ -37,3 +37,13 @@ doctrine:
     dbal:
         driver: pdo_sqlite
         path: '%app.base_dir%sonata_classification_test.db3'
+    orm:
+        entity_managers:
+            default:
+                mappings:
+                    SonataClassificationBundle: null
+                    SonataClassificationTest:
+                        type: attribute
+                        dir: '%kernel.project_dir%/Entity'
+                        is_bundle: false
+                        prefix: Sonata\ClassificationBundle\Tests\App\Entity