Remove $wp_secret_key_default.

With the duplicate key checks, this is isn't necessary. It could also cause problems when you
temporarily update to an English translation of a new version before going back to the locale.

see #19599.



git-svn-id: http://core.svn.wordpress.org/trunk@20691 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/pluggable.php

@@ -1325,8 +1325,6 @@ if ( !function_exists('wp_salt') ) :
  * @return string Salt value
  */
 function wp_salt( $scheme = 'auth' ) {
-	global $wp_secret_key_default; // This is set for localized builds for versions > 3.4.0.
-
 	static $cached_salts = array();
 	if ( isset( $cached_salts[ $scheme ] ) )
 		return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme );
@@ -1342,8 +1340,6 @@ function wp_salt( $scheme = 'auth' ) {
 				$duplicated_keys[ $value ] = isset( $duplicated_keys[ $value ] );
 			}
 		}
-		if ( ! empty( $wp_secret_key_default ) )
-			$duplicated_keys[ $wp_secret_key_default ] = true;
 	}
 
 	$key = $salt = '';