[imp] Disable "Empty Folder" button

[Jan Schneider]

Zitat von Giuseppe Ravasio <giuseppe_ravasio at modiano.com>:

> Hello,
> since version 4.2 Alpha of IMP was added a "button to empty the  
> current folder"...
> I'm trying to upgrade our horde to the latest version but i need to  
> disable this button.
>
> There is a config way or I've to edit the code?

The latter.

Jan.

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