Remove unused/dead old code

- "quiet" option and related functions (used by blocking page);
- "adlist" option (used by blocking page).

Signed-off-by: RD WebDesign <github@rdwebdesign.com.br>

scripts/pi-hole/php/queryads.php

@@ -58,7 +58,7 @@ if (isset($_GET['showall'])) {
     $options .= ' -all';
 }
 
-$proc = popen('sudo pihole -q -adlist '.$url.$options, 'r');
+$proc = popen('sudo pihole -q '.$url.$options, 'r');
 while (!feof($proc)) {
     echoEvent(fread($proc, 4096));
 }