Remove useless mac_proto.h include

When a header is changed, all including files need to be recompiled,
too. Thus, including a header needlessly all over the place drives
compile times up without any reason.

openair2/F1AP/f1ap_cu_ue_context_management.c

@@ -37,7 +37,6 @@
 #include "f1ap_cu_ue_context_management.h"
 #include <string.h>
 
-#include "openair2/LAYER2/MAC/mac_proto.h"
 #include "rrc_extern.h"
 #include "rrc_eNB_UE_context.h"
 #include "rrc_eNB_S1AP.h"

openair2/LAYER2/MAC/eNB_scheduler.c

@@ -35,7 +35,6 @@
 #include "LAYER2/MAC/mac_extern.h"
 
 #include "LAYER2/MAC/mac_proto.h"
-#include "LAYER2/NR_MAC_gNB/mac_proto.h"
 #include "common/utils/LOG/log.h"
 #include "nfapi/oai_integration/vendor_ext.h"
 #include "common/utils/LOG/vcd_signal_dumper.h"