[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* Remmove outdated server tests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/public/model/license.go

@@ -39,15 +39,6 @@ var (
 	sanctionedTrialDurationUpperBound = 29*(time.Hour*24) + (time.Hour * 23) + (time.Minute * 59) + (time.Second * 59) // 696 hours (29 days) + 23 hours, 59 mins and 59 seconds
 )
 
-const (
-	TrueUpReviewTelemetryName          = "true_up_review_sent"
-	TrueUpReviewAuthFeaturesMfa        = "multi_factor_authentication"
-	TrueUpReviewAuthFeaturesADLdap     = "ad_ldap_sign_in"
-	TrueUpReviewAuthFeaturesSaml       = "saml_sign_in"
-	TrueUpReviewAuthFeatureOpenId      = "openid_connect"
-	TrueUpReviewAuthFeatureGuestAccess = "guest_access"
-)
-
 type LicenseRecord struct {
 	Id       string `json:"id"`
 	CreateAt int64  `json:"create_at"`