Don't raise when removing non-existing cloud backup (#133429)

homeassistant/components/cloud/backup.py

@@ -167,7 +167,7 @@ class CloudBackupAgent(BackupAgent):
         :param backup_id: The ID of the backup that was returned in async_list_backups.
         """
         if not await self.async_get_backup(backup_id):
-            raise BackupAgentError("Backup not found")
+            return
 
         try:
             await async_files_delete_file(

tests/components/cloud/test_backup.py

@@ -570,4 +570,4 @@ async def test_agents_delete_not_found(
     response = await client.receive_json()
 
     assert response["success"]
-    assert response["result"] == {"agent_errors": {"cloud.cloud": "Backup not found"}}
+    assert response["result"] == {"agent_errors": {}}