kea: added reservation for chromecast workshop audio

roles/kea/templates/kea/kea-dhcp4.conf.j2

@@ -294,16 +294,6 @@
                     "hostname": "cannelloni"
                 },
 
-                {
-                    "hw-address": "7c:d9:5c:3f:ca:70",
-                    "hostname": "cc-keller-video"
-                },
-
-                {
-                    "hw-address": "54:60:09:f6:49:52",
-                    "hostname": "cc-wohnzimmer-audio"
-                },
-
                 {
                     "hw-address": "30:fd:38:ce:5a:01",
                     "hostname": "cc-wohnzimmer-video"
@@ -443,11 +433,6 @@
                     "hostname": "openhabgw1"
                 },
 
-                {
-                    "hw-address": "40:f5:20:28:c7:9b",
-                    "hostname": "wled-flux"
-                },
-
                 {
                     "hw-address": "08:f9:e0:e4:51:30",
                     "hostname": "wled-stairs"