iwlwifi: remove command and return value from opmode RX

With the previous patch series, no opmode continues using the
command or handler_status (i.e. the return value from the RX)
so it can be removed now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --cc drivers/net/wireless/iwlwifi/dvm/agn.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/dvm/rx.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-op-mode.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/iwl-trans.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/ops.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/pcie/internal.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/pcie/rx.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/pcie/tx.c
Simple merge