Remove encrypted mail

Signed-off-by: Tommy <contact@tommytran.io>

config.yml

@@ -120,10 +120,6 @@ menu:
       name: PGP
       url: tommy.asc
       weight: 40
-    - identifier: S/MIME
-      name: S/MIME
-      url: tommy.crt
-      weight: 50
 
 privacy:
   disqus:

content/contact.md

@@ -23,7 +23,7 @@ My Telegram is [TommyTran732](https://t.me/tommytran732). I do not check it as o
 
 ## Email
 
-If you prefer to reach out to me via email, my address is [contact@tommytran.io](mailto:contact@tommytran.io). You can use my [PGP Key](/tommy.asc) or [S/MIME Key](/tommy.crt) to encrypt the messages. Using PGP is preferable, as signing and encryption is handled by my Yubikeys. Aliases:
+If you prefer to reach out to me via email, my address is [contact@tommytran.io](mailto:contact@tommytran.io). Aliases:
 
 - [tommy@privsec.dev](mailto:tommy@privsec.dev)
 - [tommy@arcticfoxes.net](mailto:tommy@arcticfoxes.net)

static/tommy.crt

@@ -1,30 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFFTCCA/2gAwIBAgIQPlT9KzL7bwQl/7aGBUX5MzANBgkqhkiG9w0BAQsFADCB
-ljELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G
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-dct9LCRve8PUiKvb1yQdQb7jS92ryvj7/NeW4TVxEeM38aeatwzaUjcAzZ9d+L81
-8HTt4iYeBkN0
------END CERTIFICATE-----