hosts: Decommission matrix0.p.b

The Synapse server hasn't been working for a while, but we don't use it
for anything any more anyway.

group_vars/vm-hosts.yml

@@ -261,7 +261,6 @@ vm_autostart:
 - bw0
 - delay 5s
 - smtp1
-- matrix0
 - delay 10s
 - pxe0
 - unifi3

hosts

@@ -15,7 +15,6 @@ bw0.pyrocufflink.blue
 cloud0.pyrocufflink.blue
 file0.pyrocufflink.blue
 git0.pyrocufflink.blue
-matrix0.pyrocufflink.blue
 
 [burp-server]
 burp1.pyrocufflink.blue
@@ -147,7 +146,6 @@ file0.pyrocufflink.blue
 git0.pyrocufflink.blue
 haproxy0.pyrocufflink.blue
 k8s-ctrl0.pyrocufflink.blue
-matrix0.pyrocufflink.blue
 nvr2.pyrocufflink.blue
 pxe0.pyrocufflink.blue
 smtp1.pyrocufflink.blue
@@ -183,7 +181,6 @@ smtp1.pyrocufflink.blue
 [squid]
 
 [synapse]
-matrix0.pyrocufflink.blue
 
 [unifi]