[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* Remmove outdated server tests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/platform/license.go

@@ -343,54 +343,6 @@ func (ps *PlatformService) RequestTrialLicense(trialRequest *model.TrialLicenseR
 	return nil
 }
 
-// GenerateRenewalToken returns a renewal token that expires after duration expiration
-func (ps *PlatformService) GenerateRenewalToken(expiration time.Duration) (string, *model.AppError) {
-	license := ps.License()
-	if license == nil {
-		return "", model.NewAppError("GenerateRenewalToken", "app.license.generate_renewal_token.no_license", nil, "", http.StatusBadRequest)
-	}
-
-	if license.IsCloud() {
-		return "", model.NewAppError("GenerateRenewalToken", "app.license.generate_renewal_token.bad_license", nil, "", http.StatusBadRequest)
-	}
-
-	activeUsers, err := ps.Store.User().Count(model.UserCountOptions{})
-	if err != nil {
-		return "", model.NewAppError("GenerateRenewalToken", "app.license.generate_renewal_token.app_error",
-			nil, "", http.StatusInternalServerError).Wrap(err)
-	}
-
-	expirationTime := time.Now().UTC().Add(expiration)
-	claims := &JWTClaims{
-		LicenseID:   license.Id,
-		ActiveUsers: activeUsers,
-		RegisteredClaims: jwt.RegisteredClaims{
-			ExpiresAt: jwt.NewNumericDate(expirationTime),
-		},
-	}
-
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	tokenString, err := token.SignedString([]byte(license.Customer.Email))
-	if err != nil {
-		return "", model.NewAppError("GenerateRenewalToken", "app.license.generate_renewal_token.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
-	}
-
-	return tokenString, nil
-}
-
-// GenerateLicenseRenewalLink returns a link that points to the CWS where clients can renew license
-func (ps *PlatformService) GenerateLicenseRenewalLink() (string, string, *model.AppError) {
-	renewalToken, err := ps.GenerateRenewalToken(JWTDefaultTokenExpiration)
-	if err != nil {
-		return "", "", err
-	}
-	return fmt.Sprintf("%s?token=%s", ps.getLicenseRenewalURL(), renewalToken), renewalToken, nil
-}
-
-func (ps *PlatformService) getLicenseRenewalURL() string {
-	return fmt.Sprintf("%s/subscribe/renew", *ps.Config().CloudSettings.CWSURL)
-}
-
 func (ps *PlatformService) getRequestTrialURL() string {
 	return fmt.Sprintf("%s/api/v1/trials", *ps.Config().CloudSettings.CWSURL)
 }