Delete unused --deepspeed_mpi command line argument
diff --git a/deepspeed/__init__.py b/deepspeed/__init__.py
index 87b959f56be0..06a04c791de3 100755
--- a/deepspeed/__init__.py
+++ b/deepspeed/__init__.py
@@ -234,12 +234,6 @@ def _add_core_arguments(parser):
                        type=str,
                        help='Deprecated DeepSpeed json configuration file.')
 
-    group.add_argument('--deepspeed_mpi',
-                       default=False,
-                       action='store_true',
-                       help="Run via MPI, this will attempt to discover the necessary variables to initialize torch "
-                       "distributed from the MPI environment")
-
     return parser
 
 

I noticed this argument in my command-line arguments being added by DeepSpeed, and turns out it being False by default has no effect. Since it is not used anywhere, it's probably best to delete it.