Update servers.json

Remove servers that redirect to a website or have registration disabled

Closes #10437

gajim/data/other/servers.json

@@ -5,11 +5,8 @@
       "creep.im",
       "deshalbfrei.org",
       "draugr.de",
-      "im.apinc.org",
-      "jabber-hosting.de",
       "jabber.ccc.de",
       "jabber.cz",
-      "jabber.hot-chilli.net",
       "jabber.meta.net.nz",
       "jabber.no",
       "jabber.sk",
@@ -22,13 +19,10 @@
       "lightwitch.org",
       "linuxlovers.at",
       "njs.netlab.cz",
-      "richim.org",
-      "suchat.org",
       "tigase.im",
       "ubuntu-jabber.de",
       "ubuntu-jabber.net",
       "verdammung.org",
-      "xabber.de",
-      "xmpp-hosting.de"
+      "xabber.de"
    ]
 }