Getting rid of REMIND and LATER resolutions in Bugzilla

Today, our team once again stumbled upon old bugs being resolved with LATER or REMIND, and it's high likely that we'll forget about them soon again. Both of these non-resolutions tend to get out of sight when mixed into resolved bugs. The Mozilla team itself agreed on removing them ^[1] for their installation and many other projects have followed since. Using LATER and REMIND is merely a source of confusion.

So also we decided to disable^[2] them:

Administration > Field values > Resolution
for both values: unchecked property enabled for bugs

But they don't disappear from the user interface for bugs. Is it broken, have I to delete the values instead? What am I doing wrong?

^[1] The discussion has held in 35839 – REMIND and LATER considered harmful to bugzilla.mozilla.org
^[2] deleting them seemed not to be appropriate due to the already existing bugs

Solution

Now (after having changed the language from German to English for asking here) I tried it again, and the values aren't available any more. I suffered probably only from a caching effect.