Sebastian Fricke authored Feb 21, 2022 and GStreamer Marge Bot committed Mar 01, 2022

Remove the symbolic link `gst-uninstalled` which points to `gst-env`.
The `uninstalled` is the old name and the project should stick to a
single name for the procedure.
Remove the term from all the files, exceptions are variables from
dependencies like `uninstalled_variables` from pkgconfig and
`meson-uninstalled`.
Adjust mentions of the script in the documentation and README.

Part-of: <gstreamer/gstreamer!1743>