This commit essentially reverts
4ee323a89a. We now duplicate the data
again, but loading the interface specification from somewhere else does
not make much sense, since the specification must match the actually
implemented interface.
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
We already install the XML data anyway, so there is no reason to ship it
twice (once in the binary and once as a file).
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>