Removed the Support Email setting
Created by: jvanbaarsen
What does this MR do? it removes the support_email param in the gitlab.yml config file
Why was this MR needed? It looks like it is not used anymore so its a little cleaner not to have it around
Anything reviewer need to watch out for? Well, i did a grep for support_email, and did not found any occurrences of it anymore. But please wait to see if CI will fail on anything support_email related.