websites/pyrocufflink: Switch to mod_md for cert

The _pyrocufflink.net_ site now obtains its certificate from Let's
Encrypt using the Apache _mod_md_ (managed domain) module.  This
dramatically simplifies the deployment of this certificate, eliminating
the need for _cert-manager_ to obtain it, _cert-exporter_ to add it to
_certs.git_, and Jenkins to push it out to the web server.

certs/websites/pyrocufflink.net.cer

@@ -1 +0,0 @@
-../lego/_.pyrocufflink.net.crt

certs/websites/pyrocufflink.net.key

@@ -1 +0,0 @@
-../lego/_.pyrocufflink.net.key

roles/websites/pyrocufflink.net/meta/main.yml

@@ -1,9 +0,0 @@
-dependencies:
-- role: cert
-  vars:
-    cert_src: websites/pyrocufflink.net.cer
-    cert_dest: /etc/pki/tls/certs/pyrocufflink.net.cer
-    cert_key_src: websites/pyrocufflink.net.key
-    cert_key_dest: /etc/pki/tls/private/pyrocufflink.net.key
-  tags:
-  - websites/pyrocufflink.net

roles/websites/pyrocufflink.net/templates/pyrocufflink.httpd.conf.j2

@@ -1,4 +1,5 @@
 # vim: set sw=4 ts=4 sts=4 et :
+MDomain pyrocufflink.net
 
 <VirtualHost _default_:80>
     ServerName pyrocufflink.net
@@ -11,8 +12,6 @@
 <VirtualHost _default_:443>
     ServerName pyrocufflink.net
     Include conf.d/ssl.include
-    SSLCertificateFile /etc/pki/tls/certs/pyrocufflink.net.cer
-    SSLCertificateKeyFile /etc/pki/tls/private/pyrocufflink.net.key
 
     ProxyRequests Off
     RewriteEngine On