refactor(searcher): remove Python 2 compatibility code (#170)

Remove try/except fallback for importing quote from urllib
that is no longer necessary for Python 3.8+ project.

Author: tiborsimko

cernopendata_client/searcher.py

@@ -13,15 +13,11 @@
 import sys
 import requests
 
+from urllib.parse import quote
+
 from .config import SERVER_HTTP_URI, SERVER_ROOT_URI, SERVER_HTTPS_URI
 from .printer import display_message
 
-try:
-    from urllib.parse import quote
-except ImportError:
-    # fallback for Python 2
-    from urllib import quote
-
 
 def verify_recid(server=None, recid=None):
     """Verify that recid corresponds to a valid Open Data record webpage.