debian_arm64:jessie travis fails

[knorth55]

https://travis-ci.org/euslisp/EusLisp/jobs/513952717

Euslisp test fails because of this issue osrf/multiarch-docker-image-generation#27 .

[k-okada]

It seems jessie was out of support list. https://discourse.ros.org/t/kinetic-builds-disabled-on-eol-platform-debian-jessie/5051
see #376

[knorth55]

closed by #376