remove deprecated mgmt pkgs from main (#40666)

Author: swathipil

sdk/azurelargeinstance/azure-mgmt-azurelargeinstance/CHANGELOG.md

@@ -1,3 +1,7 @@
 # Microsoft Azure SDK for Python
 
-This package is no longer being maintained. Use the [azure-mgmt-largeinstance](https://pypi.org/project/azure-mgmt-largeinstance/) package instead, which has exactly same API.
+This package is no longer being maintained. Use the [azure-mgmt-largeinstance](https://pypi.org/project/azure-mgmt-largeinstance/) package instead, which has exactly same API.
+
+Package source code and samples have been removed from the `main` branch and can be found under the release tag for the latest version. See [azure-mgmt-azurelargeinstance_1.0.0b2](https://github.com/Azure/azure-sdk-for-python/tree/azure-mgmt-azurelargeinstance_1.0.0b2/sdk/azurelargeinstance/azure-mgmt-azurelargeinstance). The latest release can be found on [PyPI](https://pypi.org/project/azure-mgmt-azurelargeinstance/).
+
+If you have any questions, please open a [GitHub Issue](https://github.com/Azure/azure-sdk-for-python/issues) or email `[email protected]`.