Remove extended/test_syslog.robot from master branch

This test suite is available in v1.0-stable and master branch.
Removing from master branch as the use case is deprecated and
to avoid being pulled in for total test count available in the
repository.

Resolves openbmc/openbmc-test-automation#519

Change-Id: I837a9f6bd30c4c474d9700fb87156b9f4b8d9bab
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
1 file changed