Remove effectively empty connectathon directories

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Remove old test that cthon does better

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Remove effectively empty cppcheck-xml directory

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Remove effectively empty testres-xml directory

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>