LGTM fixes

powerdnsadmin/models/record.py

@@ -57,7 +57,7 @@ class Record(object):
             current_app.logger.error(
                 "Cannot fetch domain's record data from remote powerdns api. DETAIL: {0}"
                 .format(e))
-            return False
+            return []
 
         return jdata['rrsets']
 

powerdnsadmin/routes/admin.py

@@ -1,4 +1,3 @@
-import re
 import json
 import traceback
 from ast import literal_eval

powerdnsadmin/routes/index.py

@@ -326,7 +326,6 @@ def signin_history(username, authenticator, success):
         request_ip = request.remote_addr
 
     # Write log
-    str_success = 'succeeded' if success else 'failed'
     if success:
         str_success = 'succeeded'
         current_app.logger.info(