Remove artifacts entries for long-gone RESTCONF
Remove artifacts entries for long-gone RESTCONF

RESTCONF has been moved to its own project, hence these
artifacts entries are duds. Remove them.

Change-Id: I72d918567a04841784b0a8061ec655fe79af6ae4
Signed-off-by: Robert Varga <91ae5aa8c7a9f7e57b701db766e23e544aaa6ae9@pantheon.tech>
(cherry picked from commit 09f44218611fb5a1439d1b2c7ffef401449c354b)

opendaylight/controller