Revert "[MM-45684] - Self Managed: Add pricing modal + Upgrade button (#20653)" (#20673)

This reverts commit 01fce41bd7.

model/config.go

@@ -940,16 +940,15 @@ func (s *MetricsSettings) SetDefaults() {
 }
 
 type ExperimentalSettings struct {
-	ClientSideCertEnable              *bool   `access:"experimental_features,cloud_restrictable"`
-	ClientSideCertCheck               *string `access:"experimental_features,cloud_restrictable"`
-	LinkMetadataTimeoutMilliseconds   *int64  `access:"experimental_features,write_restrictable,cloud_restrictable"`
-	RestrictSystemAdmin               *bool   `access:"experimental_features,write_restrictable"`
-	UseNewSAMLLibrary                 *bool   `access:"experimental_features,cloud_restrictable"`
-	CloudBilling                      *bool   `access:"experimental_features,write_restrictable"`
-	EnableSharedChannels              *bool   `access:"experimental_features"`
-	EnableRemoteClusterService        *bool   `access:"experimental_features"`
-	EnableAppBar                      *bool   `access:"experimental_features"`
-	EnableUpgradeForSelfHostedStarter *bool   `access:"experimental_features"`
+	ClientSideCertEnable            *bool   `access:"experimental_features,cloud_restrictable"`
+	ClientSideCertCheck             *string `access:"experimental_features,cloud_restrictable"`
+	LinkMetadataTimeoutMilliseconds *int64  `access:"experimental_features,write_restrictable,cloud_restrictable"`
+	RestrictSystemAdmin             *bool   `access:"experimental_features,write_restrictable"`
+	UseNewSAMLLibrary               *bool   `access:"experimental_features,cloud_restrictable"`
+	CloudBilling                    *bool   `access:"experimental_features,write_restrictable"`
+	EnableSharedChannels            *bool   `access:"experimental_features"`
+	EnableRemoteClusterService      *bool   `access:"experimental_features"`
+	EnableAppBar                    *bool   `access:"experimental_features"`
 }
 
 func (s *ExperimentalSettings) SetDefaults() {
@@ -988,10 +987,6 @@ func (s *ExperimentalSettings) SetDefaults() {
 	if s.EnableAppBar == nil {
 		s.EnableAppBar = NewBool(false)
 	}
-
-	if s.EnableUpgradeForSelfHostedStarter == nil {
-		s.EnableUpgradeForSelfHostedStarter = NewBool(true)
-	}
 }
 
 type AnalyticsSettings struct {