fix(avserver): remove adminsteamid (#3620)

lgsm/config-default/config-lgsm/avserver/_default.cfg

@@ -10,14 +10,8 @@
 
 ## Predefined Parameters | https://docs.linuxgsm.com/configuration/start-parameters
 
-# https://steamidfinder.com
-adminsteamid=""
-if [ -n "${adminsteamid}" ]; then
-	admincmd="--admin ${adminsteamid}"
-fi
-
 ## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
-startparameters="--galaxy-name ${selfname} --ip ${ip} --datapath ${avdatapath} ${admincmd}"
+startparameters="--galaxy-name ${selfname} --ip ${ip} --datapath ${avdatapath}"
 
 #### LinuxGSM Settings ####