Index: wp-admin/import/wordpress.php
===================================================================
--- wp-admin/import/wordpress.php	(revision 12835)
+++ wp-admin/import/wordpress.php	(working copy)
@@ -698,10 +698,6 @@
 			@unlink($upload['file']);
 			return new WP_Error( 'import_file_error', sprintf(__('Remote file returned error response %1$d %2$s'), $headers['response'], get_status_header_desc($headers['response']) ) );
 		}
-		elseif ( isset($headers['content-length']) && filesize($upload['file']) != $headers['content-length'] ) {
-			@unlink($upload['file']);
-			return new WP_Error( 'import_file_error', __('Remote file is incorrect size') );
-		}
 
 		$max_size = $this->max_attachment_size();
 		if ( !empty($max_size) and filesize($upload['file']) > $max_size ) {