Drop Python 2 (1/n): remove unicode string and url_utils

searx/engines/digg.py

@@ -14,8 +14,8 @@ import random
 import string
 from dateutil import parser
 from json import loads
+from urllib.parse import urlencode
 from lxml import html
-from searx.url_utils import urlencode
 from datetime import datetime
 
 # engine dependent config