Revert "[distributed] Replace assert statements with AssertionError exceptions (#165216)"

This reverts commit 74db92b21868b7e9e77cc966e5d57a8246723cbd.

Reverted https://github.com/pytorch/pytorch/pull/165216 on behalf of https://github.com/clee2000 due to I think this broke distributed/test_pg_wrapper.py::ProcessGroupNCCLWrapperTest::test_debug_level_detail_no_gloo [GH job link](https://github.com/pytorch/pytorch/actions/runs/18492765290/job/52693842750) [HUD commit link](74db92b218), note to self: bad TD ([comment](https://github.com/pytorch/pytorch/pull/165216#issuecomment-3402838765))

torch/distributed/run.py

@@ -792,12 +792,8 @@ def _get_logs_specs_class(logs_specs_name: Optional[str]) -> type[LogsSpecs]:
 def config_from_args(args) -> tuple[LaunchConfig, Union[Callable, str], list[str]]:
     # If ``args`` not passed, defaults to ``sys.argv[:1]``
     min_nodes, max_nodes = parse_min_max_nnodes(args.nnodes)
-    if not (0 < min_nodes <= max_nodes):
-        raise AssertionError(
-            f"min_nodes must be > 0 and <= max_nodes, got min_nodes={min_nodes}, max_nodes={max_nodes}"
-        )
-    if args.max_restarts < 0:
-        raise AssertionError("max_restarts must be >= 0")
+    assert 0 < min_nodes <= max_nodes
+    assert args.max_restarts >= 0
 
     if (
         hasattr(args, "master_addr")
@@ -837,8 +833,7 @@ def config_from_args(args) -> tuple[LaunchConfig, Union[Callable, str], list[str
     if args.local_ranks_filter:
         try:
             ranks = set(map(int, args.local_ranks_filter.split(",")))
-            if not ranks:
-                raise AssertionError("ranks set cannot be empty")
+            assert ranks
         except Exception as e:
             raise ValueError(
                 "--local_ranks_filter must be a comma-separated list of integers e.g. --local_ranks_filter=0,1,2"