disabling default features best practices

[Bertrand]

My plugin replace the standard menu editor in a similar way the i18n plugin does (I guessed, didn't look at the code yet maybe he does it in a much cleaner way, jsut looked at the generated page and the menu editor link is still there so I supose he does just the same), that is by javascript jquerying a disappereance of the default menu entry though its html id.

Is there a standard way to disable standard features other than javascript-hacking the dom properties ?
This is not mandatory for my plugin to work, so maybe it is considered bad practice too...