It is not recommended to edit the Strapi standard login page. But it is possible using patch-package. You could simply remove the forgot your password button, patch that and you’re set.
However, I would consider building your own auth page that does not have this, and keep the Strapi login page specific for content editors/moderators or super admins. As they may have a need to reset their password in the future.
Your end users may also need to reset their passwords, but without context to your project, I cannot say for sure which solution is right for you.