diff --git a/src/Composer/Repository/RepositoryInterface.php b/src/Composer/Repository/RepositoryInterface.php
index 9684492da..96c06656f 100644
--- a/src/Composer/Repository/RepositoryInterface.php
+++ b/src/Composer/Repository/RepositoryInterface.php
@@ -22,11 +22,6 @@ use Composer\Package\PackageInterface;
  */
 interface RepositoryInterface extends \Countable
 {
-    /**
-     * Initializes repository (reads file, opens connection).
-     */
-    function initialize();
-
     /**
      * Checks if specified package registered (installed).
      *