oml: Remove the unused nofh variable from oml_mo_tx_sw_act_rep
oml: Remove the unused nofh variable from oml_mo_tx_sw_act_rep

The variable was assigned but nothing was done with it, just
remove it for now.

Fixes: Coverity CID 1040758

osmocom/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts,telenoobie/osmo-bts,osmocom/osmo-bts,geosphere/osmo-bts,osmocom/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts