Obsolete code from #15 that was forgotten to be removed
From ea34965be31dcf7e7e30c1edb9a9fa9d18fe6b30 Mon Sep 17 00:00:00 2001
From: James Taylor <user234683@users.noreply.github.com>
Date: Sat, 3 Jul 2021 20:06:11 -0700
from #15:
"[..] Firefox's VTT parsing [ignores] newlines. So if the cue starts
with a newline, that cue will have blank text (a corollary is that
the first sentence uttered will fail to display in the automatic
captions [..])."