fdu2000: Remove driver as it has been defunct for long

The driver was never ported to the new asynchronous model, meaning it
has been defunct since some time in 2008. Remove the driver, as
seemingly no one has complained about this and we have no proper way to
even verify a port is correct.
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Status Job ID Name Coverage
  Build
passed #367172
build

00:01:33

 
  Test
passed #367173
flatpak master

00:01:04