Allow key generation to suceed even if container doesn't have internet connectivity.

entrypoint.sh

@@ -4,7 +4,6 @@ if [ -f ssh_key ]; then
 	/ssh-chat -i /ssh_key $@
 else
 	echo "SSH Key not found at /ssh_key. Generating..."
-	apt-get update > /dev/null && apt-get install openssh-client -y > /dev/null 2>&1
 	ssh-keygen -t rsa -b 4096 -f /ssh_key -q -N ''
 	/ssh-chat -i /ssh_key $@
 fi