docs: Remove newlines babble from quickstart

This is more likely to just confuse people than actually do anything
useful.

docs/quickstart.rst

@@ -47,19 +47,3 @@ Compose an SRT from Python objects
     we dig a tunnel under the city and release it into the wild.
     <BLANKLINE>
     <BLANKLINE>
-
-Newlines
---------
-
-srt accepts ``\r\n`` line endings, but converts them to ``\n`` internally. One
-reason for this is because it's impossible for srt to know whether you're using
-universal newlines, and even if you're not, whether you're going to write in
-text mode or binary mode.
-
-As such, if you want output with a line ending *other* than ``\n``, it's your
-responsibility to do something like this (the default ``eol`` is ``\n`` for
-these reasons).
-
-.. code:: python
-
-    srt.compose(subs, eol=os.linesep)