removing services_test.yaml from symfony/phpunit-bridge recipe

Since Symfony 4.1, you can fetch private services from a test using
a special method - creating public aliases is not required anymore.

symfony/phpunit-bridge/3.3/config/services_test.yaml

@@ -1,9 +0,0 @@
-services:
-    _defaults:
-        public: true
-
-    # If you need to access services in a test, create an alias
-    # and then fetch that alias from the container. As a convention,
-    # aliases are prefixed with test. For example:
-    #
-    # test.App\Service\MyService: '@App\Service\MyService'

symfony/phpunit-bridge/3.3/manifest.json

@@ -2,7 +2,6 @@
     "copy-from-recipe": {
         ".env.test": ".env.test",
         "bin/": "%BIN_DIR%/",
-        "config/": "%CONFIG_DIR%/",
         "phpunit.xml.dist": "phpunit.xml.dist",
         "tests/": "tests/"
     },