'drxjeq_stat' is unused since the original
commit 38b2df95 ("[media] drx-j: add a driver for Trident drx-j
frontend").
The name was changed by
commit 57afe2f0 ("[media] drx-j: Don't use CamelCase")
and it was originally DRXJEQStat_t.

Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>