Remove GitHub Mobile for GHES beta disclaimer (#26486)

* Remove GitHub Mobile for GHES beta disclaimer

Related to https://github.com/github/mobile/issues/2440

The `Beta` disclaimer for GHES support within the mobile apps has been removed after a year of feedback and iteration. As such, let's remove the beta disclaimer from the docs about this as well! 🥳

* Clean up one last beta reference

Co-authored-by: Matt Pollard <mattpollard@users.noreply.github.com>
Co-authored-by: Grace Park <gracepark@github.com>

content/account-and-profile/managing-subscriptions-and-notifications-on-github/setting-up-notifications/about-notifications.md

@@ -15,9 +15,6 @@ versions:
 topics:
   - Notifications
 ---
-{% ifversion ghes %}
-{% data reusables.mobile.ghes-release-phase %}
-{% endif %}
 
 ## Notifications and subscriptions
 

content/account-and-profile/managing-subscriptions-and-notifications-on-github/setting-up-notifications/configuring-notifications.md

@@ -23,9 +23,6 @@ versions:
 topics:
   - Notifications
 ---
-{% ifversion ghes %}
-{% data reusables.mobile.ghes-release-phase %}
-{% endif %}
 
 ## Notification delivery options
 

content/account-and-profile/managing-subscriptions-and-notifications-on-github/viewing-and-triaging-notifications/managing-notifications-from-your-inbox.md

@@ -15,9 +15,6 @@ topics:
   - Notifications
 shortTitle: Manage from your inbox
 ---
-{% ifversion ghes %}
-{% data reusables.mobile.ghes-release-phase %}
-{% endif %}
 
 ## About your inbox
 

content/admin/configuration/configuring-your-enterprise/managing-github-mobile-for-your-enterprise.md

@@ -13,9 +13,6 @@ redirect_from:
   - /admin/configuration/managing-github-for-mobile-for-your-enterprise
 shortTitle: Manage GitHub Mobile
 ---
-{% ifversion ghes %}
-{% data reusables.mobile.ghes-release-phase %}
-{% endif %}
 
 ## About {% data variables.product.prodname_mobile %}
 

content/get-started/using-github/github-mobile.md

@@ -12,7 +12,6 @@ redirect_from:
   - /github/getting-started-with-github/github-for-mobile
   - /github/getting-started-with-github/using-github/github-for-mobile
 ---
-{% data reusables.mobile.ghes-release-phase %}
 
 ## About {% data variables.product.prodname_mobile %}
 

data/reusables/mobile/about-mobile.md

@@ -1 +1 @@
-{% data variables.product.prodname_mobile %} is available as an Android and iOS app. {% data variables.product.prodname_mobile %} is generally available for {% data variables.product.prodname_dotcom_the_website %} users and in public beta for users of {% data variables.product.prodname_ghe_server %} 3.0+.
+{% data variables.product.prodname_mobile %} is available as an Android and iOS app.

data/reusables/mobile/ghes-release-phase.md

@@ -1,5 +0,0 @@
-{% note %}
-
-**Note:** {% data variables.product.prodname_mobile %} is currently in beta for {% data variables.product.prodname_ghe_server %} 3.0 and subject to change.
-
-{% endnote %}