s390/qdio: remove unused function
s390/qdio: remove unused function

Remove the unused function qdio_trace_aob.

Acked-by: Ursula Braun <3498481c3b1fee38251ffe7b781cda34b574142e@de.ibm.com>
Signed-off-by: Sebastian Ott <34be3ca399e9e73d80098c083a5b58614c3ca6da@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <52616596d8f5df0d597e85ab515377f92f939c68@de.ibm.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs