firewire: ohci: Remove unused function
firewire: ohci: Remove unused function

Remove the function ar_prev_buffer_index() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <b2870f70e324b62b54eced4cf50284b23ec5baab@spectrumdigital.se>
Signed-off-by: Stefan Richter <fbd796546fc801b34e01e453c6fd30283e012038@s5r6.in-berlin.de>

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