docs(homebrew): revert quickstart install notes

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

Author: drew

docs/get-started/quickstart.mdx

@@ -25,15 +25,6 @@ Run the install script:
 curl -LsSf https://raw.githubusercontent.com/NVIDIA/OpenShell/main/install.sh | sh
 ```
 
-If you prefer Homebrew, tap this repository and install the stable track:
-
-```shell
-brew tap nvidia/openshell https://github.com/NVIDIA/OpenShell.git
-brew install nvidia/openshell/openshell
-```
-
-Install `nvidia/openshell/openshell-dev` instead to track the development release.
-
 If you prefer [uv](https://docs.astral.sh/uv/):
 
 ```shell