removed centos8 json example and kickstart

examples/http/centos8/ks-centos8.cfg

@@ -1,74 +0,0 @@
-install
-# TODO: Figure out why cdrom does not work
-# cdrom
-# TODO: parameterize this from the packer config file
-url --url="http://mirror.centos.org/centos/8.3.2011/BaseOS/x86_64/os/"
-lang en_US.UTF-8
-keyboard us
-network --bootproto=dhcp
-rootpw vagrant
-firewall --disabled
-selinux --permissive
-timezone UTC
-bootloader --location=mbr
-text
-skipx
-zerombr
-clearpart --all --initlabel
-autopart
-auth --enableshadow --passalgo=sha512 --kickstart
-firstboot --disabled
-eula --agreed
-services --enabled=NetworkManager,sshd
-user --name=vagrant --plaintext --password=vagrant --groups=wheel
-reboot
-
-%packages --ignoremissing --excludedocs
-openssh-clients
-sudo
-net-tools
-wget
-curl
-
-# unnecessary firmware
--aic94xx-firmware
--atmel-firmware
--b43-openfwwf
--bfa-firmware
--ipw2100-firmware
--ipw2200-firmware
--ivtv-firmware
--iwl100-firmware
--iwl1000-firmware
--iwl3945-firmware
--iwl4965-firmware
--iwl5000-firmware
--iwl5150-firmware
--iwl6000-firmware
--iwl6000g2a-firmware
--iwl6050-firmware
--libertas-usb8388-firmware
--ql2100-firmware
--ql2200-firmware
--ql23xx-firmware
--ql2400-firmware
--ql2500-firmware
--rt61pci-firmware
--rt73usb-firmware
--xorg-x11-drv-ati-firmware
--zd1211-firmware
-%end
-
-%post
-yum update -y
-
-# update root certs
-wget -O/etc/pki/tls/certs/ca-bundle.crt http://curl.haxx.se/ca/cacert.pem
-
-# sudo
-yum install -y sudo
-echo "vagrant        ALL=(ALL)       NOPASSWD: ALL" >> /etc/sudoers.d/vagrant
-sed -i "s/^.*requiretty/#Defaults requiretty/" /etc/sudoers
-
-yum clean all
-%end