get rid of old about and donate pages

Signed-off-by: ngn <ngn@ngn.tf>

src/lib/frontend.php

@@ -123,7 +123,6 @@ class frontend{
 				'<li>Remove keywords that could cause errors</li>' .
 				'<li><a href="/instances?target=' . $target . "&" . $this->buildquery($get, false) . '">Try your search on another 4get instance</a></li>' .
 			'</ul><br>' .
-			'If the error persists, please <a href="/about">contact the administrator</a>.',
 			$timetaken
 		);
 	}