Revert "Update menus.md"

This reverts commit 7d149dd1e4.

content/en/content-management/menus.md

@@ -93,8 +93,6 @@ Here’s an example snippet pulled from a configuration file:
     post = "<span class='alert'>New!</span>"
     weight = -100
     url = "/getting-started/"
-    [menu.main.params]
-    custom_param1 = "value"
 {{< /code-toggle >}}
 
 {{% note %}}