This reverts commit a4aa5c60bb.
Does not work outside of gst-build (i.e. validate won't work when used either
installed, in a prefix, or in gst-uninstalled).
Running installed gst-validate-launcher aborted with the following error.
File "lib/gst-validate-launcher/python/launcher/baseclasses.py", line 28, in <module>
import config
ImportError: No module named config
This is because config.py is added but not installed
in ba6d209b3f.
https://bugzilla.gnome.org/show_bug.cgi?id=747087
