This reverts commit 41d225f4a3.
Unfortunately this change broke 'devtool upgrade' functionality,
causing 'devtool finish' to write out an upgraded recipe that no
longer includes the original upstream source in SRC_URI.
(From OE-Core rev: 2d6e55192dba0bf7f6e23e5ab5b3dbc68835bb28)
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>