Remove verbose param_groups summary logging

Per-param logging in default_is_muon() already covers each parameter.
The summary list was redundant and too noisy.

[skip-build]

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

torch-ext/optimizer/core.py

@@ -139,7 +139,7 @@ def get_default_muon_param_groups(model, is_muon_func=None, expert_keys=None):
         is_muon_func = lambda n, x: default_is_muon(n, x, expert_keys)
 
     muon_params, muon_names = [], []
-    non_muon_params, non_muon_names = [], []
+    non_muon_params = []
 
     for n, p in model.named_parameters():
         if not p.requires_grad:
@@ -149,13 +149,6 @@ def get_default_muon_param_groups(model, is_muon_func=None, expert_keys=None):
             muon_names.append(n)
         else:
             non_muon_params.append(p)
-            non_muon_names.append(n)
-
-    logger.info("[param_groups] expert_keys=%s", expert_keys)
-    logger.info("[param_groups] Muon params (%d): %s", len(muon_names),
-                muon_names)
-    logger.info("[param_groups] AdamW params (%d): %s", len(non_muon_names),
-                non_muon_names)
 
     return [
         {