Remove os_check from update script

Signed-off-by: Christian König <github@yubiuser.dev>

advanced/Scripts/update.sh

@@ -112,8 +112,6 @@ main() {
     web_update=false
     FTL_update=false
 
-    # Perform an OS check to ensure we're on an appropriate operating system
-    os_check
 
     # Install packages used by this installation script (necessary if users have removed e.g. git from their systems)
     package_manager_detect