Fix merge conflict in openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

I had to remove the Msg2 transmission in phytest mode, which was present in branch 'benetel_integration'.
This caused following assertion:

Assertion (Foffset <= Ncb) failed!
In nr_rate_matching_ldpc() /home/sli/sudas-demonstrator/openair1/PHY/CODING/nr_rate_matching.c:411
Foffset 6492 > Ncb 924