[MM-56655] Remove deprecated Config.ProductSettings (#27375)

server/public/model/config.go

@@ -3079,12 +3079,6 @@ func (s *CloudSettings) SetDefaults() {
 	}
 }
 
-type ProductSettings struct {
-}
-
-func (s *ProductSettings) SetDefaults() {
-}
-
 type PluginState struct {
 	Enable bool
 }
@@ -3517,7 +3511,6 @@ type Config struct {
 	DataRetentionSettings     DataRetentionSettings
 	MessageExportSettings     MessageExportSettings
 	JobSettings               JobSettings
-	ProductSettings           ProductSettings // Deprecated: Remove in next major version:: https://mattermost.atlassian.net/browse/MM-56655
 	PluginSettings            PluginSettings
 	DisplaySettings           DisplaySettings
 	GuestAccountsSettings     GuestAccountsSettings
@@ -3618,7 +3611,6 @@ func (o *Config) SetDefaults() {
 	o.ThemeSettings.SetDefaults()
 	o.ClusterSettings.SetDefaults()
 	o.PluginSettings.SetDefaults(o.LogSettings)
-	o.ProductSettings.SetDefaults()
 	o.AnalyticsSettings.SetDefaults()
 	o.ComplianceSettings.SetDefaults()
 	o.LocalizationSettings.SetDefaults()