RDMA/qedr: Remove unsupported qedr_resize_cq callback

There is no need to return always zero for function which is not
supported, especially since 0 is the wrong return code.

Fixes: a7efd777 ("qedr: Add support for PD,PKEY and CQ verbs")
Link: https://lore.kernel.org/r/20211025062632.3960-1-kamalheib1@gmail.com


Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>