Use [[maybe_unused]] instead of #pragma

Author: P-R-O-C-H-Y

libraries/Zigbee/src/ZigbeeEP.cpp

@@ -126,7 +126,7 @@ char* ZigbeeEP::readModel(uint8_t endpoint, uint16_t short_addr) {
 
 void ZigbeeEP::printBoundDevices() {
     log_i("Bound devices:");
-    for(const auto& device : _bound_devices) {
+    for( [[maybe_unused]] const auto& device : _bound_devices) {
         log_i("Device on endpoint %d, short address: 0x%x", device->endpoint, device->short_addr);
         print_ieee_addr(device->ieee_addr);
     }

libraries/Zigbee/src/ZigbeeHandlers.cpp

@@ -11,12 +11,8 @@ static esp_err_t zb_cmd_read_attr_resp_handler(const esp_zb_zcl_cmd_read_attr_re
 static esp_err_t zb_configure_report_resp_handler(const esp_zb_zcl_cmd_config_report_resp_message_t *message);
 static esp_err_t zb_cmd_default_resp_handler(const esp_zb_zcl_cmd_default_resp_message_t *message);
 
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-function"
-
 // Zigbee action handlers
-static esp_err_t zb_action_handler(esp_zb_core_action_callback_id_t callback_id, const void *message) {
+[[maybe_unused]] static esp_err_t zb_action_handler(esp_zb_core_action_callback_id_t callback_id, const void *message) {
   esp_err_t ret = ESP_OK;
   switch (callback_id) {
     case ESP_ZB_CORE_SET_ATTR_VALUE_CB_ID:          ret = zb_attribute_set_handler((esp_zb_zcl_set_attr_value_message_t *)message); break;
@@ -29,8 +25,6 @@ static esp_err_t zb_action_handler(esp_zb_core_action_callback_id_t callback_id,
   return ret;
 }
 
-#pragma GCC diagnostic pop
-
 static esp_err_t zb_attribute_set_handler(const esp_zb_zcl_set_attr_value_message_t *message) {
   if (!message) {
     log_e("Empty message");