Can delete a device relay from UI

central_frontend/src/api/RelayApi.ts

@@ -39,4 +39,14 @@ export class RelayApi {
       jsonData: relay,
     });
   }
+
+  /**
+   * Delete a relay configuration
+   */
+  static async Delete(relay: DeviceRelay): Promise<void> {
+    await APIClient.exec({
+      method: "DELETE",
+      uri: `/relay/${relay.id}`,
+    });
+  }
 }