diff --git a/pytorch_lightning/core/lightning.py b/pytorch_lightning/core/lightning.py
index f1a0c725e2..671084cb2f 100644
--- a/pytorch_lightning/core/lightning.py
+++ b/pytorch_lightning/core/lightning.py
@@ -1232,10 +1232,6 @@ class LightningModule(
                     optimizer.step(closure=optimizer_closure)
                     optimizer.zero_grad()
 
-        Note:
-            If you also override the :meth:`~pytorch_lightning.core.hooks.ModelHooks.on_before_zero_grad`
-            model hook don't forget to add the call to it before ``optimizer.zero_grad()`` yourself.
-
         """
         if not isinstance(optimizer, LightningOptimizer):
             # wraps into LightingOptimizer only for running step