No bug: Don't use proxy for accessing taskcluster index; r=Callek

The index is not protected by scopes, so don't use the proxy to access it

Differential Revision: https://phabricator.services.mozilla.com/D77537

taskcluster/taskgraph/optimize/strategies.py

@@ -5,7 +5,6 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 import logging
-import os
 
 import mozpack.path as mozpath
 from mozbuild.base import MozbuildObject
@@ -35,9 +34,7 @@ class IndexSearch(OptimizationStrategy):
         "Look for a task with one of the given index paths"
         for index_path in index_paths:
             try:
-                task_id = find_task_id(
+                task_id = find_task_id(index_path)
-                    index_path,
-                    use_proxy=bool(os.environ.get('TASK_ID')))
                 return task_id
             except KeyError:
                 # 404 will end up here and go on to the next index path

taskcluster/taskgraph/util/taskcluster.py

@@ -176,9 +176,9 @@ def get_index_url(index_path, use_proxy=False, multiple=False):
     return index_tmpl.format('s' if multiple else '', index_path)
 
 
-def find_task_id(index_path, use_proxy=False):
+def find_task_id(index_path):
     try:
-        response = _do_request(get_index_url(index_path, use_proxy))
+        response = _do_request(get_index_url(index_path))
     except requests.exceptions.HTTPError as e:
         if e.response.status_code == 404:
             raise KeyError("index path {} not found".format(index_path))