removing dead code lines and excess comments

src/Composer/Downloader/PerforceDownloader.php

@@ -22,7 +22,6 @@ use Composer\Util\Perforce;
 class PerforceDownloader extends VcsDownloader
 {
     protected $perforce;
-//    protected $perforceInjected = false;
 
     /**
      * {@inheritDoc}

src/Composer/Repository/Vcs/PerforceDriver.php

@@ -142,12 +142,6 @@ class PerforceDriver extends VcsDriver
         $this->composerInfoIdentifier = $identifier;
         $result = false;
         return !empty($this->composerInfo);
-
-        if (!empty($this->composerInfo)) {
-            $result = count($this->composerInfo) > 0;
-        }
-
-        return $result;
     }
 
     /**