remove polyfills for unsupported php versions

Tobion · Tobion · commit 63fae4a2d8f1 · 2015-10-29T15:17:40.000+01:00
diff --git a/composer.json b/composer.json
@@ -16,8 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=5.5.9",
-        "symfony/polyfill-php55": "~1.0"
+        "php": ">=5.5.9"
     },
     "require-dev": {
         "symfony/yaml": "~2.8|~3.0",
