Revert "Added Consistency Level as required for some calls"

Author: jobala

msgraphcore/middleware/authorization.py

@@ -12,7 +12,7 @@ def __init__(self, credential: TokenCredential, scopes: [str]):
         self.retry_count = 0
 
     def send(self, request, **kwargs):
-        request.headers.update({'Authorization': 'Bearer {}'.format(self._get_access_token()), 'ConsistencyLevel': 'eventual'})
+        request.headers.update({'Authorization': 'Bearer {}'.format(self._get_access_token())})
         response = super().send(request, **kwargs)
 
         # Token might have expired just before transmission, retry the request one more time