Remove config for Apache as app frontend

(imported from commit ae4072bdf59cdfccec76eeee7fd3b99a899eaa19)

servers/puppet/files/apache/sites/app

@@ -1,39 +0,0 @@
-<VirtualHost *:80>
-    ServerName app.humbughq.com
-    Redirect permanent / https://app.humbughq.com/
-</VirtualHost>
-
-<VirtualHost *:443>
-    ServerName app.humbughq.com
-
-    SSLEngine on
-    SSLCertificateFile /etc/apache2/certs/humbug-self-signed.crt
-    SSLCertificateKeyFile /etc/apache2/certs/humbug-self-signed.key
-
-    Header add Strict-Transport-Security "max-age=15768000"
-
-    RewriteEngine On
-    ProxyPreserveHost On
-    ProxyRequests Off
-
-    <Proxy *>
-       Order deny,allow
-       Allow from all
-
-       AuthType Digest
-       AuthName "wiki"
-       AuthDigestProvider file
-       AuthUserFile /etc/apache2/users/wiki
-       Require valid-user
-    </Proxy>
-
-    ProxyPassReverse /    http://127.0.0.1:9991
-    RewriteRule ^(.*) http://127.0.0.1:9991$1 [P]
-    ProxyTimeout 1200
-
-    ErrorLog /var/log/apache2/error.log
-    LogLevel warn
-
-    CustomLog /var/log/apache2/access.log combined
-    ServerSignature On
-</VirtualHost>