Remove commented section

We're using Git so if we need to get it back we can always rescue it
from the Git history.

wiki/src/support/known_issues.mdwn

@@ -291,25 +291,6 @@ package on the corresponding [Debian wiki page](https://wiki.debian.org/wl).
 If you find your device in the list of supported devices, then it is
 impossible to use your Wi-Fi card in Tails.
 
-<!--
-<a id="bcm43224"></a>
-
-Broadcom BCM43224 802.11a/b/g/n Wi-Fi network interface
--------------------------------------------------------
-
-The Broadcom Corporation BCM43224 802.11a/b/g/n Wi-Fi network
-interface is known to not be able to
-[[spoof its MAC address|doc/first_steps/startup_options/mac_spoofing]]. Tails
-enables MAC spoofing by default, and will disable any network interface
-it fails to spoof. To make it work you must
-[[disable Tails' MAC spoofing feature|doc/first_steps/startup_options/mac_spoofing#disable]];
-please read the documentation carefully and make sure you understand
-the consequences before doing so.
-
-This network interface can, for instance, be found in the MacBook Air
-4,1, 4,2, 5,1 and 5,2.
--->
-
 Security issues
 ===============