How to remove Confidential Feed Access from calendar feeds section

[SadGrl]

Roundcube 0.7.2, calendar plugin 

I want users to be able to use google calendars under Settings > 'Calendar > Calendar Feeds > Calendar Feeds section  BUT I don't want them to use/see the Confidential Feed Access sections right below the Calendar Feeds section.

What is the easiest way to remove this? 

[rosali]

There is no option yet. Hack the code.

For a feature request go to http://myroundcube.googlecode.com