documentation: remove double 'enable-network-isolation' description (#2181)

Author: jvanbuel

src/sagemaker/estimator.py

@@ -1790,11 +1790,6 @@ def __init__(
                 API_AlgorithmSpecification.html#SageMaker-Type-AlgorithmSpecification-
                 EnableSageMakerMetricsTimeSeries>`_.
                 (default: ``None``).
-            enable_network_isolation (bool): Specifies whether container will
-                run in network isolation mode (default: ``False``). Network
-                isolation mode restricts the container access to outside networks
-                (such as the Internet). The container does not make any inbound or
-                outbound network calls. Also known as Internet-free mode.
             profiler_config (:class:`~sagemaker.debugger.ProfilerConfig`):
                 Configuration for how SageMaker Debugger collects
                 monitoring and profiling information from your training job.