diff --git a/src/arduino/Adafruit_USBH_Host.cpp b/src/arduino/Adafruit_USBH_Host.cpp
index d1301688..343ff96d 100644
--- a/src/arduino/Adafruit_USBH_Host.cpp
+++ b/src/arduino/Adafruit_USBH_Host.cpp
@@ -144,26 +144,6 @@ void Adafruit_USBH_Host::task(uint32_t timeout_ms, bool in_isr) {
   tuh_task_ext(timeout_ms, in_isr);
 }
 
-// Invoked when device with hid interface is mounted
-// Report descriptor is also available for use.
-// tuh_hid_parse_report_descriptor() can be used to parse common/simple enough
-// descriptor. Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE,
-// it will be skipped therefore report_desc = NULL, desc_len = 0
-TU_ATTR_WEAK void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance,
-                                   uint8_t const *desc_report,
-                                   uint16_t desc_len) {
-  (void)dev_addr;
-  (void)instance;
-  (void)desc_report;
-  (void)desc_len;
-}
-
-// Invoked when device with hid interface is un-mounted
-TU_ATTR_WEAK void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance) {
-  (void)dev_addr;
-  (void)instance;
-}
-
 // Invoked when received report from device via interrupt endpoint
 TU_ATTR_WEAK void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance,
                                              uint8_t const *report,