Revert "Mark test_floatingip_port_details test as unstable"

This reverts commit 5ddcf33322f1e257322369fff6416aa48c4214b9.

Reason for revert: I don't see failures of that test in last 30 days
according to logstash. Let's run it without skipping and we will see if
the problem still exists.

Change-Id: Iee4c0bb20ac74b1055023fbb3ea4c335564c72a4
1 file changed