Update two_factor_authentication.md

The process has been updated from Support. Only 30 support contacts are allowed per customer. A SaaS user who needs a password reset should contact a named Support Contact. If a user were to open a 2FA reset request via a ticket, it would be automatically closed. For example see ticket 314363.

Message given to user if they did open a ticket would be:
GitLab SupportOps Bot

Greetings,

You're not listed as a support contact for your organization and this ticket will be closed. Please contact an administrator within your organization to either list you as an authorized contact or to raise a support request on your behalf.

We apologize for any inconvenience this might cause.

GitLab Support

doc/user/profile/account/two_factor_authentication.md

@@ -399,10 +399,9 @@ After signing in, immediately set up 2FA with a new device.
 
 ### Have two-factor authentication disabled on your account **(PREMIUM SAAS)**
 
-If other methods are unavailable, submit a [support ticket](https://support.gitlab.com/hc/en-us/requests/new) to request
+If other methods are unavailable, have a GitLab support contact submit a [support ticket](https://support.gitlab.com) to request
 a GitLab global administrator disable 2FA for your account:
 
-- Only the owner of the account can make this request.
 - This service is only available for accounts that have a GitLab.com subscription. For more information, see our
   [blog post](https://about.gitlab.com/blog/2020/08/04/gitlab-support-no-longer-processing-mfa-resets-for-free-users/).
 - Disabling this setting temporarily leaves your account in a less secure state. You should sign in and re-enable two-factor