Removed some unused imports

readability/htmls.py

@@ -1,7 +1,6 @@
 from lxml.html import tostring
-import logging
 import lxml.html
-import re, sys
+import re
 
 from .cleaners import normalize_spaces, clean_attributes
 from .encoding import get_encoding

readability/readability.py

@@ -4,7 +4,6 @@ import logging
 import re
 import sys
 
-from collections import defaultdict
 from lxml.etree import tostring
 from lxml.etree import tounicode
 from lxml.html import document_fromstring