Revert "fix list function to follow pages"

Stupid Charlie, stupid
This reverts commit 61aba481.

re2oapi/client.py

@@ -480,7 +480,7 @@ class Re2oAPIClient:
         results = response['results']
 
         # Get all next pages and append the results
-        while results['next'] is not None and \
+        while response['next'] is not None and \
                 (max_results is None or len(results) < max_results):
             response = self.get(response['next'])
             results += response['results']