Unused var cleanup. Props DD32. see #5418

git-svn-id: http://svn.automattic.com/wordpress/trunk@6551 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/file.php

@@ -112,6 +112,7 @@ function wp_handle_upload( &$file, $overrides = false ) {
 
 	// If you override this, you must provide $ext and $type!!!!
 	$test_type = true;
+	$mimes = false;
 
 	// Install user overrides. Did we mention that this voids your warranty?
 	if ( is_array( $overrides ) )