[alert_handler] Delete stale comment

Fix #5457

Signed-off-by: Michael Schaffner <msf@opentitan.org>
diff --git a/hw/ip/alert_handler/doc/_index.md b/hw/ip/alert_handler/doc/_index.md
index 56789ab..2b5e463 100644
--- a/hw/ip/alert_handler/doc/_index.md
+++ b/hw/ip/alert_handler/doc/_index.md
@@ -935,13 +935,6 @@
 $ ./reg_alert_handler.py alert_handler.hjson.tpl -n 4 > alert_handler.hjson
 ```
 
-Note that you should also update the regfile wrapper after updating the
-regfile using
-
-```console
-$ ./alert_handler_reg_wrap.sv.tpl -n 4 > ../rtl/alert_handler_reg_wrap.sv
-```
-
 {{< registers "hw/top_earlgrey/ip/alert_handler/data/autogen/alert_handler.hjson" >}}
 
 
diff --git a/hw/ip/alert_handler/rtl/alert_handler_reg_wrap.sv b/hw/ip/alert_handler/rtl/alert_handler_reg_wrap.sv
index 66f3b44..e0eb27c 100644
--- a/hw/ip/alert_handler/rtl/alert_handler_reg_wrap.sv
+++ b/hw/ip/alert_handler/rtl/alert_handler_reg_wrap.sv
@@ -2,7 +2,7 @@
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //
-// Breakout / remapping wrapper for register file. Generated from template.
+// Breakout / remapping wrapper for register file.
 
 module alert_handler_reg_wrap import alert_pkg::*; (
   input                                   clk_i,