Remove unused ipxe config option

roles/netbootxyz/defaults/main.yml

@@ -73,7 +73,6 @@ ipxe_ca_filename: ca-ipxe-org.crt
 ipxe_ca_url: http://ca.ipxe.org/ca.crt
 ipxe_repo: https://github.com/ipxe/ipxe
 ipxe_source_dir: /usr/src/ipxe
-ipxe_trust_args: TRUST={{ ipxe_ca_location }}
 live_endpoint: https://github.com/netbootxyz
 memdisk_location: http://${boot_domain}/memdisk
 netbootxyz_conf_dir: /etc/netbootxyz

script/netbootxyz-overrides.yml

@@ -12,7 +12,6 @@ sigs_dir: "{{ netbootxyz_root }}/sigs"
 sigs_location: "http://${boot_domain}/sigs/"
 cert_dir: "/ansible/certs"
 ipxe_branch: master
-ipxe_trust_args: "TRUST={{ ipxe_ca_location }}"
 ipxe_ca_url: http://ca.ipxe.org/ca.crt
 ipxe_ca_filename: ca-ipxe-org.crt
 codesign_cert_filename: codesign.crt