Disable unittest for sys-devel/binutils.

The test is not enabled for 2.21 (But is automatically enabled for 2.22 since I unified host and target binutils ebuild files.).
I found the similar failure for 2.21.

I'm not going to dive into it and will proceed to roll out binutils.

CQ-DEPEND=CL:39596
BUG=None
TEST=cbuildbot -g '39596 39597 39598 42024' --remote lumpy-paladin (which failed withouth this CL)

Change-Id: I1e90c6d0da14e5651de828f6d57bdeddf8b1ca16
Reviewed-on: https://gerrit.chromium.org/gerrit/42024
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: asharif <asharif@chromium.org>
Commit-Queue: Han Shen <shenhan@google.com>
Tested-by: Han Shen <shenhan@google.com>
1 file changed