Migrate as much as possible to pip and requirements.txt

lib/html5lib/serializer/__init__.py

@@ -1,16 +0,0 @@
-from __future__ import absolute_import, division, unicode_literals
-
-from .. import treewalkers
-
-from .htmlserializer import HTMLSerializer
-
-
-def serialize(input, tree="etree", format="html", encoding=None,
-              **serializer_opts):
-    # XXX: Should we cache this?
-    walker = treewalkers.getTreeWalker(tree)
-    if format == "html":
-        s = HTMLSerializer(**serializer_opts)
-    else:
-        raise ValueError("type must be html")
-    return s.render(walker(input), encoding)