deposit.signals: Remove compatibility code

The deposit service only sends message for the current new deposit loader.

swh/deposit/signals.py

@@ -94,25 +94,10 @@ def post_deposit_save(sender, instance, created, raw, using,
     elif (instance.status == DEPOSIT_STATUS_VERIFIED and
           not instance.load_task_id):
 
-        version = default_config.config.get('loader-version', 1)
-        # schedule deposit loading
-        if int(version) == 1:  # default version
-            from swh.deposit.config import PRIVATE_GET_RAW_CONTENT
-            from swh.deposit.config import PRIVATE_GET_DEPOSIT_METADATA
-            from swh.deposit.config import PRIVATE_PUT_DEPOSIT
-            archive_url = reverse(PRIVATE_GET_RAW_CONTENT, args=args)
-            meta_url = reverse(PRIVATE_GET_DEPOSIT_METADATA, args=args)
-            update_url = reverse(PRIVATE_PUT_DEPOSIT, args=args)
-
-            task = create_oneshot_task_dict('load-deposit',
-                                            archive_url=archive_url,
-                                            deposit_meta_url=meta_url,
-                                            deposit_update_url=update_url)
-        else:  # new version
-            url = utils.origin_url_from(instance)
-            task = create_oneshot_task_dict(
-                'load-deposit',
-                url=url, deposit_id=instance.id)
+        url = utils.origin_url_from(instance)
+        task = create_oneshot_task_dict(
+            'load-deposit',
+            url=url, deposit_id=instance.id)
 
         load_task_id = schedule_task(default_config.scheduler, task)
         instance.load_task_id = load_task_id