Remove Num_Threads_PUSCH options: it's not used

ci-scripts/conf_files/gnb-cu.sa.band78.106prb.conf

 Active_gNBs = ( "cu-rfsim");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (

ci-scripts/conf_files/gnb-cu.sa.f1.conf

 Active_gNBs = ( "gNB-Eurecom-CU");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (

ci-scripts/conf_files/gnb-cucp.sa.f1.conf

 Active_gNBs = ( "gNB-OAI");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (

ci-scripts/conf_files/gnb-cucp.sa.f1.quectel.conf

 Active_gNBs = ( "gNB-OAI");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (

ci-scripts/conf_files/untested/gNB_SA_n78_133PRB.2x2_usrpn310.conf

 Active_gNBs = ( "gNB-OAI");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (

targets/PROJECTS/GENERIC-NR-5GC/CONF/cu_gnb.conf

 Active_gNBs = ( "gNB-Eurecom-CU");
 # Asn1_verbosity, choice in: none, info, annoying
 Asn1_verbosity = "none";
-Num_Threads_PUSCH = 8;
 
 gNBs =
 (