--- a/taskcluster/taskgraph/transforms/job/spidermonkey.py
+++ b/taskcluster/taskgraph/transforms/job/spidermonkey.py
@@ -41,22 +41,16 @@ def docker_worker_spidermonkey(config, j
     if int(config.params['level']) > 1:
         worker['caches'].append({
             'type': 'persistent',
             'name': 'level-{}-{}-build-spidermonkey-workspace'.format(
                 config.params['level'], config.params['project']),
             'mount-point': "/home/worker/workspace",
         })
 
-    # include secrets access
-    # TODO (taskdiff): this is unused? remove it
-    worker['taskcluster-proxy'] = True
-    taskdesc['scopes'].append(
-        'secrets:get:project/releng/gecko/build/level-{}/*'.format(config.params['level']))
-
     docker_worker_add_tc_vcs_cache(config, job, taskdesc)
     docker_worker_add_public_artifacts(config, job, taskdesc)
     docker_worker_add_gecko_vcs_env_vars(config, job, taskdesc)
 
     env = worker['env']
     env.update({
         'MOZHARNESS_DISABLE': 'true',
         'TOOLS_DISABLE': 'true',