we don't provide macOS nightly archives now (#2471) (#2479)

(cherry picked from commit fc3573c)

Co-authored-by: William Woodall <[email protected]>

source/Installation/Testing.rst

@@ -68,7 +68,7 @@ For Debian-based operating systems, you can install binary packages from the **r
 Fat binaries
 ------------
 
-For core packages, we run nightly packaging jobs for Ubuntu Linux, macOS, and Windows.
+For core packages, we run nightly packaging jobs for Ubuntu Linux, RHEL, and Windows.
 These packaging jobs produce archives with pre-built binaries that can be downloaded and extracted to your filesystem.
 
 1. Make sure you have all dependencies installed according to the :doc:`latest development setup <Latest-Development-Setup>` for your platform.
@@ -83,13 +83,7 @@ These packaging jobs produce archives with pre-built binaries that can be downlo
 
    .. tabs::
 
-     .. group-tab:: Linux
-
-       .. code-block:: sh
-
-          source path/to/extracted/archive/setup.bash
-
-     .. group-tab:: macOS
+     .. group-tab:: Ubuntu Linux and RHEL
 
        .. code-block:: sh