cu_cp,f1ap: removed unused notifier

Author: FabianEckermann

include/srsran/f1ap/cu_cp/f1ap_cu.h

@@ -142,9 +142,6 @@ class f1ap_du_processor_notifier : public du_setup_notifier, public f1ap_common_
 public:
   virtual ~f1ap_du_processor_notifier() = default;
 
-  /// \brief Notifies the CU-CP to create a new UE instance.
-  virtual ue_index_t on_new_cu_cp_ue_required() = 0;
-
   /// \brief Notifies the CU-CP that an RRC context has been created for an existing CU-CP UE.
   virtual ue_rrc_context_creation_outcome
   on_ue_rrc_context_creation_request(const ue_rrc_context_creation_request& req) = 0;

lib/cu_cp/adapters/f1ap_adapters.h

@@ -37,12 +37,6 @@ class f1ap_du_processor_adapter : public f1ap_du_processor_notifier
     return du_setup_hdlr->handle_du_setup_request(msg);
   }
 
-  ue_index_t on_new_cu_cp_ue_required() override
-  {
-    srsran_assert(du_f1ap_handler != nullptr, "F1AP handler must not be nullptr");
-    return du_f1ap_handler->allocate_new_ue_index();
-  }
-
   ue_rrc_context_creation_outcome
   on_ue_rrc_context_creation_request(const ue_rrc_context_creation_request& req) override
   {

lib/cu_cp/du_processor/du_processor.h

@@ -33,9 +33,6 @@ class du_processor_f1ap_interface
   /// \return The DU index.
   virtual du_index_t get_du_index() = 0;
 
-  /// \brief Allocate a new UE index.
-  virtual ue_index_t allocate_new_ue_index() = 0;
-
   /// \brief Request to create a new UE RRC context.
   ///
   /// This method should be called when a C-RNTI and PCell are assigned to a UE.
@@ -221,7 +218,6 @@ class du_processor_mobility_handler
   /// \brief Retrieve the SIB1 for a given PCI of a DU.
   virtual byte_buffer get_packed_sib1(nr_cell_global_id_t cgi) = 0;
 };
-
 /// Handler for an NGAP entity to communicate with the DU processor
 class du_processor_ngap_interface
 {

tests/unittests/f1ap/cu_cp/f1ap_cu_test_helpers.h

@@ -146,7 +146,7 @@ class dummy_f1ap_du_processor_notifier : public srs_cu_cp::f1ap_du_processor_not
     return response;
   }
 
-  ue_index_t on_new_cu_cp_ue_required() override
+  ue_index_t on_new_cu_cp_ue_required()
   {
     ue_index_t ue_index = srs_cu_cp::ue_index_t::invalid;
     if (ue_id < max_nof_supported_ues) {