[CLD-7567] Deprecate Self Serve: Second Pass (#26853)

* Deprecate Self Serve: First Pass

* Fix ci

* Fix more ci

* Remmove outdated server tests

* Fix a missed spot opening purchase modal in Self Hosted

* Fix i18n

* Clean up some more server code, fix webapp test

* Fix alignment of button

* Fix linter

* Fix i18n server side

* Deprecate in product true up

* Add back translation

* Remove client functions

* Put back client functions

* webapp deprecation

* Deprecate Self Serve: Second Pass

* Fix various pipeline issues

* Fix linter

* Fix pipelines

* Fix handlers_test.go

* Fix console.error around hostedCustomer in reducer

* PICKY LINTER PLEASE

* Fix webapp tests, various other fixes for the CI pipelines

* Fix i18n

* Updates to accomadate enterprise code removal

* Fix mocks

* More removal

* Fix

* Adjustments from PR

* Fixes for QA Feedback

* Update

* Add migrations to remove true up review history

* Fix migrations check

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: maria.nunez <maria.nunez@mattermost.com>

server/channels/app/license.go

@@ -156,13 +156,3 @@ func (s *Server) RemoveLicenseListener(id string) {
 func (s *Server) GetSanitizedClientLicense() map[string]string {
 	return s.platform.GetSanitizedClientLicense()
 }
-
-// GenerateRenewalToken returns a renewal token that expires after duration expiration
-func (s *Server) GenerateRenewalToken(expiration time.Duration) (string, *model.AppError) {
-	return s.platform.GenerateRenewalToken(expiration)
-}
-
-// GenerateLicenseRenewalLink returns a link that points to the CWS where clients can renew license
-func (s *Server) GenerateLicenseRenewalLink() (string, string, *model.AppError) {
-	return s.platform.GenerateLicenseRenewalLink()
-}