Merge pull request #3911 from hannesvdvreken/patch-1

Unused variable

src/Composer/DependencyResolver/Pool.php

@@ -55,7 +55,6 @@ class Pool
 
     public function __construct($minimumStability = 'stable', array $stabilityFlags = array(), array $filterRequires = array())
     {
-        $stabilities = BasePackage::$stabilities;
         $this->versionParser = new VersionParser;
         $this->acceptableStabilities = array();
         foreach (BasePackage::$stabilities as $stability => $value) {