This unit test has always been flakey, now it appears to just fail,
remove.

Change-Id: I2eae74bfa11ada5535a9ac87fe6fe884c5258261
Reviewed-on: http://gerrit.dmdirc.com/2170
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>