MTFF: Allow viewers access in cloud (#114607)

* Reapply "K8s: read resource configs from API Enablement for API Builders" (#114475)

This reverts commit 4130bd9cd3.

* revert part that broke things

* FF service changes are gonna come later

* MTFF: allow viewers access to MTFF by enforcing runtime_config for custom routes

* unused var

* removed now

* pass the test, include defaults

* revert sample.ini change

pkg/registry/apis/ofrep/register.go

@@ -64,10 +64,6 @@ func NewAPIBuilder(providerType string, url *url.URL, insecure bool, caFile stri
 }
 
 func RegisterAPIService(apiregistration builder.APIRegistrar, cfg *setting.Cfg) (*APIBuilder, error) {
-	if !cfg.OpenFeature.APIEnabled {
-		return nil, nil
-	}
-
 	var staticEvaluator featuremgmt.StaticFlagEvaluator //  No static evaluator needed for non-static provider
 	var err error
 	if cfg.OpenFeature.ProviderType == setting.StaticProviderType {