Bug 1493056 - check for mar existence before chmoding it, and remove deprecated action, r=aki

Differential Revision: https://phabricator.services.mozilla.com/D6460

--HG--
extra : moz-landing-system : lando

taskcluster/taskgraph/transforms/repackage_partner.py

@@ -172,7 +172,7 @@ def make_job_description(config, jobs):
             'using': 'mozharness',
             'script': 'mozharness/scripts/repackage.py',
             'job-script': 'taskcluster/scripts/builder/repackage.sh',
-            'actions': ['download_input', 'setup', 'repackage'],
+            'actions': ['setup', 'repackage'],
             'extra-workspace-cache-key': 'repackage',
             'extra-config': {
                 'repackage_config': repackage_config,

testing/mozharness/scripts/repackage.py

@@ -12,7 +12,6 @@ class Repackage(BaseScript):
     def __init__(self, require_config_file=False):
         script_kwargs = {
             'all_actions': [
-                "download_input",
                 "setup",
                 "repackage",
             ],
@@ -31,7 +30,7 @@ class Repackage(BaseScript):
         mar_path = os.path.join(dirs['abs_input_dir'], 'mar')
         if self._is_windows():
             mar_path += '.exe'
-        if mar_path:
+        if mar_path and os.path.exists(mar_path):
             self.chmod(mar_path, 0755)
         if self.config.get("run_configure", True):
             self._get_mozconfig()