docs(sandboxes): reset manage sandboxes page

Author: drew

docs/sandboxes/manage-sandboxes.mdx

@@ -200,14 +200,6 @@ openshell forward list
 openshell forward stop 8000 my-sandbox
 ```
 
-Use the gRPC service-forwarding path when you want to test the OS-88 service relay path without SSH port forwarding:
-
-```shell
-openshell forward service my-sandbox --target-port 8000 --local 8000
-```
-
-This binds a local listener and opens one authenticated gRPC stream to the gateway for each accepted local TCP connection. The target must be a loopback TCP service inside the sandbox. Use `--local 127.0.0.1:0` to let OpenShell choose a free local port.
-
 <Tip>
 You can also forward a port at creation time with `--forward`: