fix(ns2): remove login (#3759)

lgsm/config-default/config-lgsm/ns2server/_default.cfg

@@ -8,10 +8,6 @@
 
 #### Game Server Settings ####
 
-## SteamCMD Login | https://docs.linuxgsm.com/steamcmd#steamcmd-login
-steamuser="username"
-steampass='password'
-
 ## Predefined Parameters | https://docs.linuxgsm.com/configuration/start-parameters
 ip="0.0.0.0"
 port="27015"