Amend out-of-storage banner text

ee/app/services/namespaces/check_excess_storage_size_service.rb

@@ -37,10 +37,6 @@ module Namespaces
       end
     end
 
-    def base_message
-      s_("NamespaceStorageSize|push to your repository, create pipelines, create issues or add comments. To reduce storage capacity, delete unused repositories, artifacts, wikis, issues, and pipelines. To learn more about reducing storage capacity please visit our docs.")
-    end
-
     def formatted(number)
       number_to_human_size(number, delimiter: ',', precision: 2)
     end

ee/app/views/shared/_namespace_storage_limit_alert.html.haml

@@ -26,6 +26,7 @@
 
         .gl-alert-body
           = payload[:explanation_message]
+          = link_to _('Learn more.'), help_page_path('user/usage_quotas'), target: '_blank', rel: 'noopener noreferrer'
 
         - if show_storage_banner_actions
           .gl-alert-actions

locale/gitlab.pot

@@ -22644,9 +22644,6 @@ msgstr ""
 msgid "NamespaceStorageSize|push to your repository, create pipelines, create issues or add comments. To reduce storage capacity, delete unused repositories, artifacts, wikis, issues, and pipelines."
 msgstr ""
 
-msgid "NamespaceStorageSize|push to your repository, create pipelines, create issues or add comments. To reduce storage capacity, delete unused repositories, artifacts, wikis, issues, and pipelines. To learn more about reducing storage capacity please visit our docs."
-msgstr ""
-
 msgid "NamespaceUserCap|Pending users must be reviewed and approved by a group owner. Learn more about %{user_caps_link_start}User Caps%{link_end} and %{users_pending_approval_link_start}Users Pending Approval%{link_end}."
 msgstr ""