Bug#1058966: pynwb: please remove old extraneous build dep on python3-unittest2

[Alexandre Detiste]

Source: pynwb
Version: 1.2.1-2
Severity: normal

Unittest2 was a backport of Python3's standard "unittest" to Python2.

Upstream is now using the real thing,
please remove this overide from debian/control.

Greetings,