Removed Windows bits.

ebook_converter/ebooks/html/input.py

@@ -9,7 +9,6 @@ import urllib.parse
 
 from ebook_converter.ebooks.oeb.base import urlunquote
 from ebook_converter.ebooks.chardet import detect_xml_encoding
-from ebook_converter.constants_old import iswindows
 from ebook_converter import unicode_path, replace_entities
 
 
@@ -22,9 +21,6 @@ class Link(object):
     def url_to_local_path(cls, url, base):
         path = url.path
         isabs = False
-        if iswindows and path.startswith('/'):
-            path = path[1:]
-            isabs = True
         path = urllib.parse.urlunparse(('', '', path, url.params, url.query,
                                         ''))
         path = urlunquote(path)