[DotEnv] Remove usePutEnv property default value

tucksaun · tucksaun · commit 362c339fa635 · 2019-12-06T12:04:06.000+01:00
The value is already set in the constructor (and changes in 5.0) and the class is final.
diff --git a/src/Symfony/Component/Dotenv/Dotenv.php b/src/Symfony/Component/Dotenv/Dotenv.php
@@ -35,7 +35,7 @@ final class Dotenv
     private $data;
     private $end;
     private $values;
-    private $usePutenv = true;
+    private $usePutenv;
 
     /**
      * @var bool If `putenv()` should be used to define environment variables or not.
