test: remove flaky status from eval_messages test
test: remove flaky status from eval_messages test

This test has not failed on armv7-wheezy in over 6 weeks. Let's remove its
"flaky" status.

Fixes: https://github.com/nodejs/node/issues/2672
Reviewed-By: Rod Vagg <4dc7c9ec434ed06502767136789763ec11d2c4b7@va.gg>
Reviewed-By: Jeremiah Senkpiel <f1782d15e31ad502ea2c097c21cc235811d0cb7c@rocketmail.com>
Reviewed-By: James M Snell <2d64a127ffc94dbe6295928a16bedf8b26814159@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/3420

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node