Remove *_CALLBACK_ENABLE related code; Fix V2 Max device name

keyboards/keychron/common/wireless/indicator.c

@@ -180,9 +180,6 @@ void indicator_init(void) {
     setPinOutput(BAT_LOW_LED_PIN);
     writePin(BAT_LOW_LED_PIN, !BAT_LOW_LED_PIN_ON_STATE);
 #endif
-#ifdef KEYCHRON_CALLBACK_ENABLE
-    register_led_indicator_task(LED_INDICATORS_KB, false);
-#endif
 }
 
 #if defined(LED_MATRIX_ENABLE) || defined(RGB_MATRIX_ENABLE)

keyboards/keychron/common/wireless/report_buffer.c

@@ -59,10 +59,6 @@ void report_buffer_init(void) {
     report_buffer_queue_tail = 0;
     retry                    = 0;
     report_timer_buffer      = timer_read32();
-
-#ifdef KEYCHRON_CALLBACK_ENABLE
-    register_keychron_task(report_buffer_task, true);
-#endif
 }
 
 bool report_buffer_enqueue(report_buffer_t *report) {

keyboards/keychron/common/wireless/wireless.c

@@ -113,10 +113,6 @@ void wireless_init(void) {
     nkro.bluetooth = keymap_config.nkro;
 #    endif
 #endif
-#ifdef KEYCHRON_CALLBACK_ENABLE
-    register_wt_tasks();
-    register_record_process(process_record_wireless, false);
-#endif
 }
 
 /*

keyboards/keychron/common/wireless/wireless_main.c

@@ -34,9 +34,3 @@ bool wireless_tasks(void) {
     if (get_transport() == TRANSPORT_USB) usb_remote_wakeup();
     return true;
 }
-
-#ifdef KEYCHRON_CALLBACK_ENABLE
-void register_wt_tasks(void) {
-    register_keychron_task(wireless_tasks, true);
-}
-#endif