[Qgis-developer] qgis_ogcutilstest and qgis_ziplayertest disabled on Travis

[Nyall Dawson]

Following the conversation from
https://github.com/qgis/QGIS/commit/89d4998 , this is an announcement
to notify that the qgis_ogcutilstest and qgis_ziplayertest have been
disabled on the Travis builds.

Work has been underway to remove "noisy" tests from Travis which cause
false alarms and these tests regularly fail for unrelated changes.
False alarms are bad as they undermine confidence in the CI results
and encourage contributors to ignore the test results.

If you're interested in seeing these tests continue as part of the CI
infrastructure here are some examples of typical random failures these
tests encounter:

qgis_ogcutilstest: https://travis-ci.org/qgis/QGIS/jobs/163456478
qgis_ziplayertest: https://travis-ci.org/qgis/QGIS/builds/163070753

Nyall