Echo error response from RTD without formatting

Echo error response from RTD without formatting

The rtd-trigger-build.sh starts a build at ReadTheDocs and parses
the response, a small JSON like this:

    {"build_triggered":false,"project":"unicorn","versions":[]}

This change drops the invocation of jq that attempts to pretty-print
the JSON to the log when the build is not triggered, because that
call was failing for inexplicable reasons.

Change-Id: Ic4369b7e0b9172d4b4c9c3544224b6b5325813a5
Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>