remove |navigation id|

Author: sadym-chromium

index.bs

@@ -5461,8 +5461,6 @@ steps given |navigable| and |navigation status|:
    <code>browsingContext.DownloadFinished</code> production, with the
    <code>params</code> field set to |params|.
 
-1. Let |navigation id| be |navigation status|'s id.
-
 1. Let |related navigables| be a [=/set=] containing |navigable|.
 
 1. For each |session| in the [=set of sessions for which an event is enabled=]