refactor: remove maxAttMtu member from GattClientSt and GattServerSt classes

Author: XavierBernhardt-Philips

hal_st/middlewares/ble_middleware/GapSt.hpp

@@ -140,7 +140,6 @@ namespace hal
 
     private:
         services::BondStorageSynchronizer& bondStorageSynchronizer;
-        uint16_t maxAttMtu = services::AttMtuExchange::defaultMaxAttMtuSize;
     };
 }
 

hal_st/middlewares/ble_middleware/GattClientSt.cpp

@@ -175,9 +175,6 @@ namespace hal
             case ACI_ATT_READ_RESP_VSEVT_CODE:
                 HandleAttReadResponse(*reinterpret_cast<const aci_att_read_resp_event_rp0*>(event.data));
                 break;
-            case ACI_ATT_EXCHANGE_MTU_RESP_VSEVT_CODE:
-                HandleAttExchangeMtuResponse(*reinterpret_cast<const aci_att_exchange_mtu_resp_event_rp0*>(event.data));
-                break;
             default:
                 break;
         }

hal_st/middlewares/ble_middleware/GattServerSt.hpp

@@ -29,8 +29,6 @@ namespace hal
         // Implementation of AttMtuExchange
         uint16_t EffectiveMaxAttMtuSize() const override;
 
-        uint16_t maxAttMtu = defaultMaxAttMtuSize;
-
     protected:
         virtual void AddCharacteristic(services::GattServerCharacteristic& characteristic);
         virtual void AddCharacteristicDescriptor(const services::GattServerCharacteristic& characteristic, services::GattServerDescriptor& descriptor);