Remove special handling of pgl.yoyo.org

Signed-off-by: Christian König <ckoenig@posteo.de>

gravity.sh

@@ -463,12 +463,6 @@ gravity_DownloadBlocklists() {
     # Default user-agent (for Cloudflare's Browser Integrity Check: https://support.cloudflare.com/hc/en-us/articles/200170086-What-does-the-Browser-Integrity-Check-do-)
     agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36"
 
-    # Provide special commands for blocklists which may need them
-    case "${domain}" in
-      "pgl.yoyo.org") cmd_ext="-d mimetype=plaintext -d hostformat=hosts";;
-      *) cmd_ext="";;
-    esac
-
     echo -e "  ${INFO} Target: ${url}"
     local regex check_url
     # Check for characters NOT allowed in URLs