Hide syseleven from overview table for the time being

[mbuechse]

No description provided.

[mbuechse]

@depressiveRobot tested locally -- works

[berendt]

Is there a reason why this is done?

[mbuechse]

@berendt
Table entries that are permanently red are quite irritating and cause increased mental load for Marvin and me. We have decided to ask the operators in question whether they object to having their entries removed. Some of them replied that they now want to push for becoming green again, others replied that they want to become green again, but it would take them a lot of time, and therefore they agreed with the removal. Mind you: the entries in question are for testing purposes anyway and not related to any certificates.