disable storage1 backup on db1

Allow to recover the object storage space as it remains less than 2To of space

data/hostname/db1.internal.staging.swh.network.yaml

@@ -57,17 +57,3 @@ prometheus::sql::config_snippets:
   - swh-scheduler
   - swh-storage
   - swh-scrubber
-
-syncoid::configuration:
-  sources:
-    storage1:
-      host: storage1.internal.staging.swh.network
-      datasets:
-        kafka:
-          dataset: data/kafka
-          frequency: 5min
-        objects:
-          dataset: data/objects
-          frequency: 5min
-      target_dataset_base: data/sync
-      ssh_key: db1