Remove archiving all versions models

As archiving all versions of models is no more supported in SDK and CLI remove documentation about this

Author: pdhotems

articles/machine-learning/how-to-manage-models.md

@@ -517,12 +517,6 @@ You can archive all versions or only specific versions of a model. If you don't
 
 # [Azure CLI](#tab/cli)
 
-Archive all versions of a model:
-
-```azurecli
-az ml model archive --name run-model-example
-```
-
 Archive a specific model version:
 
 ```azurecli
@@ -531,12 +525,6 @@ az ml model archive --name run-model-example --version 1
 
 # [Python SDK](#tab/python)
 
-Archive all versions of a model:
-
-```python
-ml_client.models.archive(name="run-model-example")
-```
-
 Archive a specific model version:
 
 ```python