Remove {sgp,mex}.mirror.pkgbuild.com from hosts

sgp and mex both have disk errors and died, so remove them to hosts.
Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>

host_vars/sgp.mirror.pkgbuild.com

----
-mirror_domain: sgp.mirror.pkgbuild.com
-archweb_mirrorcheck_locations: [9]
-arch32_mirror_domain: sgp.mirror.archlinux32.org
-archbuild_fs: 'btrfs'
-network_interface: "eno2"
-ipv4_address: "161.202.204.205"
-ipv4_netmask: "/26"
-ipv4_gateway: "161.202.204.193"

hosts

@@ -11,8 +11,6 @@ ch-s012.rsync.net
 [pia]
 ind.mirror.pkgbuild.com
 jpn.mirror.pkgbuild.com
-mex.mirror.pkgbuild.com
-sgp.mirror.pkgbuild.com
 ger.mirror.pkgbuild.com
 runner1.archlinux.org
 repro1.pkgbuild.com
@@ -21,15 +19,11 @@ repro2.pkgbuild.com
 [mirrors]
 ind.mirror.pkgbuild.com
 jpn.mirror.pkgbuild.com
-mex.mirror.pkgbuild.com
-sgp.mirror.pkgbuild.com
 ger.mirror.pkgbuild.com
 
 [archive_mirrors]
 ind.mirror.pkgbuild.com
 jpn.mirror.pkgbuild.com
-mex.mirror.pkgbuild.com
-sgp.mirror.pkgbuild.com
 ger.mirror.pkgbuild.com
 
 [borg_clients]
@@ -72,7 +66,6 @@ bugs.archlinux.org
 
 [buildservers]
 dragon.archlinux.org
-sgp.mirror.pkgbuild.com
 
 [gitlab_runners]
 runner1.archlinux.org

playbooks/sgp.yml

----
-- name: setup singapore build server
-  hosts: sgp.mirror.pkgbuild.com
-  remote_user: root
-  roles:
-    - { role: common }
-    - { role: tools }
-    - { role: sshd }
-    - { role: unbound }
-    - { role: root_ssh }
-    - { role: archusers }
-    - { role: certbot }
-    - { role: nginx }
-    - { role: sudo, tags: ['archusers'] }
-    - { role: syncrepo, tags: ['nginx'] }
-    - { role: arch32_mirror, tags: ['nginx'] }
-    - { role: sogrep }
-    - { role: archweb, archweb_site: false, archweb_services: false, archweb_mirrorcheck: true }
-    - { role: crond }
-    - { role: zabbix-agent, tags: ["zabbix"] }
-    - { role: public_html, public_domain: "sgp.pkgbuild.com", tags: ['public_html', 'nginx'] }
-