IB/ipath: Remove unused function in ipath_wc_ppc64

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

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

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --cc drivers/infiniband/hw/ipath/ipath_kernel.h
Simple merge

diff --cc drivers/infiniband/hw/ipath/ipath_wc_ppc64.c
Simple merge

diff --cc drivers/infiniband/hw/ipath/ipath_wc_x86_64.c
Simple merge