linaro-android-kernel-tests.sh: remove test for sync

since the sync implementation is not supported by kernel 4.9+

Change-Id: I6a4f326f243622ba9c9a0a1e90cb98abe951f793
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
(cherry picked from commit 602cc4a9928ab8da602ce5c737fe4ce367bff4c4)
1 file changed