Rollback of commit 174.

Handling of newline characters depends on the current handle mode, not the
implementation of ``enumHandle``.

Original message::

> Include a note that no newline conversion is performed in text-based
> ``enumHandle`` and ``enumFile``.
diff --git a/lib/Data/Enumerator/Text.hs b/lib/Data/Enumerator/Text.hs
index cc95878..1a823a5 100644
--- a/lib/Data/Enumerator/Text.hs
+++ b/lib/Data/Enumerator/Text.hs
@@ -759,8 +759,7 @@
 -- in 'IO.ReadMode' or 'IO.ReadWriteMode'.
 --
 -- Changed in 0.4.18: Lines streamed from 'enumHandle' and 'enumFile' now
--- include their trailing newline. Newlines are always streamed exactly as
--- they appear in the file, with no conversion.
+-- include their trailing newline.
 --
 -- Since: 0.2
 enumHandle :: MonadIO m => IO.Handle
@@ -793,8 +792,7 @@
 -- 'Iteratee' finishes.
 --
 -- Changed in 0.4.18: Lines streamed from 'enumHandle' and 'enumFile' now
--- include their trailing newline. Newlines are always streamed exactly as
--- they appear in the file, with no conversion.
+-- include their trailing newline.
 --
 -- Since: 0.2
 enumFile :: FilePath -> Enumerator T.Text IO b