Chore: Wrap custom configuration in development environment check (#70833)

packages/grafana-runtime/src/config.ts

@@ -194,7 +194,9 @@ export class GrafanaBootConfig implements GrafanaConfig {
       systemDateFormats.update(this.dateFormats);
     }
 
-    overrideFeatureTogglesFromUrl(this);
+    if (this.buildInfo.env === 'development') {
+      overrideFeatureTogglesFromUrl(this);
+    }
 
     if (this.featureToggles.disableAngular) {
       this.angularSupportEnabled = false;