Remove go-nitro from setup

testnet-onboarding-demo.md

@@ -310,49 +310,7 @@
 
 ### Go Nitro
 
-1. Clone go-nitro repository
-
-    ```bash
-    git clone git@github.com:cerc-io/go-nitro.git
-    cd go-nitro
-
-    # Install Node.js dependencies and build the repo
-    yarn && yarn build
-
-    # Install go dependencies
-    go mod tidy
-    ```
-
-2. Build go-nitro and bridge binaries
-
-    ```bash
-    go build
-    go build -o nitro-bridge cmd/start-bridge/main.go
-    ```
-
-3. Generate TLS certificate (prerequisite: [mkcert](https://github.com/cerc-io/go-nitro/tree/main/tls#tls))
-
-    ```bash
-    cd tls
-    make create-cert
-
-    # Go back to go-nitro
-    cd ../
-    ```
-
-4. Install `nitro-rpc-client` package globally:
-
-    ```bash
-    # In go-nitro
-    npm install -g ./packages/nitro-rpc-client
-
-    # Confirm global installation by running
-    nitro-rpc-client --version
-    ```
-
-    - Replace `<go-nitro-repo-absolute-path>` with absolute path to the cloned go-nitro repo
-
-### Bridge Stack
+#### Bridge Stack
 
 1. Clone the stack repos: