remove deprecated config

build/gitkubed/sshd_config

@@ -15,10 +15,6 @@ HostKey /etc/ssh/ssh_host_ed25519_key
 #Privilege Separation is turned on for security
 UsePrivilegeSeparation yes
 
-# Lifetime and size of ephemeral version 1 server key
-KeyRegenerationInterval 3600
-ServerKeyBits 1024
-
 # Logging
 SyslogFacility AUTH
 LogLevel INFO
@@ -28,14 +24,11 @@ LoginGraceTime 120
 PermitRootLogin No
 StrictModes yes
 
-RSAAuthentication yes
 PubkeyAuthentication yes
 #AuthorizedKeysFile	%h/.ssh/authorized_keys
 
 # Don't read the user's ~/.rhosts and ~/.shosts files
 IgnoreRhosts yes
-# For this to work you will also need host keys in /etc/ssh_known_hosts
-RhostsRSAAuthentication no
 # similar for protocol version 2
 HostbasedAuthentication no
 # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication