rm obsolete comment about noci test for cone traces

Author: etpinard

tasks/noci_test.sh

@@ -26,8 +26,6 @@ test_jasmine () {
 # since the update to [email protected], we must use orca
 # as mapbox-gl versions >0.22.1 aren't supported on [email protected] used in the
 # 'old' image server
-#
-# cone traces don't render correctly in the imagetest container
 test_image () {
     $root/../orca/bin/orca.js graph \
         $root/test/image/mocks/mapbox_* \