Remove docs references to old subscription tiers

doc/administration/compliance.md

@@ -26,4 +26,4 @@ relevant compliance standards.
 |**[Audit events](audit_events.md)**<br>To maintain the integrity of your code, GitLab Enterprise Edition Premium gives admins the ability to view any modifications made within the GitLab server in an advanced audit events system, so you can control, analyze, and track every change.|Premium+|✓|Instance, Group, Project|
 |**[Auditor users](auditor_users.md)**<br>Auditor users are users who are given read-only access to all projects, groups, and other resources on the GitLab instance.|Premium+||Instance|
 |**[Credentials inventory](../user/admin_area/credentials_inventory.md)**<br>With a credentials inventory, GitLab administrators can keep track of the credentials used by all of the users in their GitLab instance. |Ultimate||Instance|
-|**Separation of Duties using [Protected branches](../user/project/protected_branches.md#protected-branches-approval-by-code-owners) and [custom CI Configuration Paths](../ci/pipelines/settings.md#custom-cicd-configuration-path)**<br> GitLab Silver and Premium users can leverage the GitLab cross-project YAML configurations to define deployers of code and developers of code. View the [Separation of Duties Deploy Project](https://gitlab.com/guided-explorations/separation-of-duties-deploy/blob/master/README.md) and [Separation of Duties Project](https://gitlab.com/guided-explorations/separation-of-duties/blob/master/README.md) to see how to use this set up to define these roles.|Premium+|✓|Project|
+|**Separation of Duties using [Protected branches](../user/project/protected_branches.md#protected-branches-approval-by-code-owners) and [custom CI Configuration Paths](../ci/pipelines/settings.md#custom-cicd-configuration-path)**<br> GitLab Premium users can leverage the GitLab cross-project YAML configurations to define deployers of code and developers of code. View the [Separation of Duties Deploy Project](https://gitlab.com/guided-explorations/separation-of-duties-deploy/blob/master/README.md) and [Separation of Duties Project](https://gitlab.com/guided-explorations/separation-of-duties/blob/master/README.md) to see how to use this set up to define these roles.|Premium+|✓|Project|

doc/ci/environments/environments_dashboard.md

@@ -53,4 +53,4 @@ You can add up to 150 projects for GitLab to display on this dashboard.
 
 GitLab.com users can add public projects to the Environments
 Dashboard for free. If your project is private, the group it belongs
-to must have a [GitLab Silver](https://about.gitlab.com/pricing/) plan.
+to must have a [GitLab Premium](https://about.gitlab.com/pricing/) plan.

doc/subscriptions/gitlab_com/index.md

@@ -46,11 +46,11 @@ at any given time doesn't exceed the subscription count.
 
 Every occupied seat is counted in the subscription, with the following exception:
 
-- Members with Guest permissions on a Gold subscription.
+- Members with Guest permissions on an Ultimate subscription.
 
 NOTE:
 To support the open source community and encourage the development of open
-source projects, GitLab grants access to **Gold** features for all GitLab.com
+source projects, GitLab grants access to **Ultimate** features for all GitLab.com
 **public** projects, regardless of the subscription.
 
 ## Obtain a GitLab.com subscription
@@ -62,7 +62,7 @@ To subscribe to GitLab.com:
      [sign up page](https://gitlab.com/users/sign_up).
   1. Visit the [billing page](https://gitlab.com/profile/billings)
      under your profile.
-  1. Select the **Bronze**, **Silver**, or **Gold** GitLab.com plan through the
+  1. Select the **Bronze**, **Premium**, or **Ultimate** GitLab.com plan through the
      [Customers Portal](https://customers.gitlab.com/).
   1. Link your GitLab.com account with your Customers Portal account.
      Once a plan has been selected, if your account is not
@@ -79,7 +79,7 @@ To subscribe to GitLab.com:
      namespace.
   1. Create additional users and
      [add them to the group](../../user/group/index.md#add-users-to-a-group).
-  1. Select the **Bronze**, **Silver**, or **Gold** GitLab.com plan through the
+  1. Select the **Bronze**, **Premium**, or **Ultimate** GitLab.com plan through the
      [Customers Portal](https://customers.gitlab.com/).
   1. Link your GitLab.com account with your Customers Portal account.
      Once a plan has been selected, if your account is not
@@ -271,8 +271,8 @@ of CI pipeline minutes:
 
 - Free: 400 minutes
 - Bronze: 2,000 minutes
-- Silver: 10,000 minutes
-- Gold: 50,000 minutes
+- Premium: 10,000 minutes
+- Ultimate: 50,000 minutes
 
 Quotas apply to:
 
@@ -290,7 +290,7 @@ The available quota is reset on the first of each calendar month at midnight UTC
 
 When the CI minutes are depleted, an email is sent automatically to notify the owner(s)
 of the namespace. You can [purchase additional CI minutes](#purchase-additional-ci-minutes),
-or upgrade your account to [Silver or Gold](https://about.gitlab.com/pricing/).
+or upgrade your account to [Premium or Ultimate](https://about.gitlab.com/pricing/).
 Your own runners can still be used even if you reach your limits.
 
 ### Purchase additional CI minutes