staging: qlge: Remove useless dma synchronization calls

This is unneeded for two reasons:
1) the cpu does not write data for the device in the mapping
2) calls like ..._sync_..._for_device(..., ..._FROMDEVICE) are
   nonsensical, see commit 3f0fb4e8 ("Documentation/DMA-API-HOWTO.txt:
   fix misleading example")

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Link: https://lore.kernel.org/r/20190927101210.23856-8-bpoirier@suse.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>