{aosm} Remove msrestazure for aosm (#8847)

* Remove msrestazure for aosm

* test recording

Author: evelyn-ys

src/aosm/HISTORY.rst

@@ -2,6 +2,9 @@
 
 Release History
 ===============
+2.0.0b2
+++++++++
+* Remove msrestazure dependency
 
 2.0.0b1
 ++++++++

src/aosm/azext_aosm/_validators.py

@@ -9,7 +9,7 @@ def example_name_or_id_validator(cmd, namespace):
     # See:
     # https://github.com/Azure/azure-cli/blob/dev/doc/authoring_command_modules/authoring_commands.md#supporting-name-or-id-parameters
     from azure.cli.core.commands.client_factory import get_subscription_id
-    from msrestazure.tools import is_valid_resource_id, resource_id
+    from azure.mgmt.core.tools import is_valid_resource_id, resource_id
 
     if namespace.storage_account:
         if not is_valid_resource_id(namespace.RESOURCE):