contact.html: Remove mention of security issue reporting
contact.html: Remove mention of security issue reporting

This isn't relevant. Nobody would try to report an issue with this web
form... I hope.

Signed-off-by: Tyler Hicks <e6fb06210fafc02fd7479ddbed2d042cc3a5155e@tyhicks.com>

tyhicks/tyhicks.github.io,tyhicks/tyhicks.github.io,tyhicks/tyhicks.github.io,tyhicks/tyhicks.github.io