ZUC's default mode is to fork for every test case. Unfortunately on
AArch64, fork in an ASan-traced program usually takes around 3.6 entire
seconds. This was leading to the config-parser test timing out.
As none of our remaining ZUC tests even need to fork, just remove all
support for it.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Daniel Stone