[CLD-6870] Remove CloudFreeDeprecated feature flag (#27675)

* Remove CloudFreeDeprecated feature flag

* Fixes for CI pipelines

* Remove CloudReverseTrial feature flag and accompanying code (#27676)

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

---------

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

server/public/model/feature_flags.go

@@ -36,8 +36,6 @@ type FeatureFlags struct {
 
 	DeprecateCloudFree bool
 
-	CloudReverseTrial bool
-
 	EnableExportDirectDownload bool
 
 	MoveThreadsEnabled bool
@@ -69,7 +67,6 @@ func (f *FeatureFlags) SetDefaults() {
 	f.DeprecateCloudFree = false
 	f.WysiwygEditor = false
 	f.OnboardingTourTips = true
-	f.CloudReverseTrial = false
 	f.EnableExportDirectDownload = false
 	f.MoveThreadsEnabled = false
 	f.StreamlinedMarketplace = true