It's automatically loaded form infusions. You can only disable entire submit pages (each infusion has its own settings) and since v9.10 you can set who can see these pages.
Ok, thanks for details. In which file in infusions i can find code responsible for that? Im looked in user info panel, but i cannot find any related code.
Ah ok... By disabling this option you also hide that link from user info panel. Each infusion has the same settings. This is only way to remove submit link without touching code. I won't advise how to modify code because it's a stupid idea. Changes will revert after CMS updates.
Another way is to copy user_info_panel/templates/user_info.tpl.php into your theme and remove code that autoload these links (it remove all submit links)