Remove CDDL and ctfconvert tests when their controlling knobs are disabledHEADmain

In the event someone specified MK_CDDL == no prior to this change, all
tests under `/usr/tests/cddl` would stick around after the change,
resulting in errors. Similarly, MK_DTRACE == no removed ctfconvert,
which the ctfconvert tests relied on (but remained around after the knob
was disabled).

Remove the tests under the respective blocks now so they don't linger
around on systems where these knobs are disabled, resulting in false
positives when running the complete test suite.

The ctfconvert tests weren't specifically put under
`${MK_DTRACE_TESTS}` == no because ctfconvert was bundled separately
from the upstream provided Dtrace test suite.

MFC after:	2 weeks
MFC with:	30c20ca26 ("Remove Dtrace/ZFS tests if their knobs are disabled")

0 files changed, 0 insertions, 0 deletions