clean compiler warning.

class/audio/usbd_audio.c

@@ -154,4 +154,4 @@ __WEAK void usbd_audio_set_mute(uint8_t mute)
 
 __WEAK void usbd_audio_sof_callback(void)
 {
-}
+}

class/cdc/usbh_cdc_acm.c

@@ -282,4 +282,4 @@ CLASS_INFO_DEFINE const struct usbh_class_info cdc_acm_class_info = {
     .vid = 0x00,
     .pid = 0x00,
     .class_driver = &cdc_acm_class_driver
-};
+};

class/hid/usbh_hid.c

@@ -259,4 +259,4 @@ CLASS_INFO_DEFINE const struct usbh_class_info hid_mouse_class_info = {
     .vid = 0x00,
     .pid = 0x00,
     .class_driver = &hid_class_driver
-};
+};

class/hub/usbd_hub.c

@@ -103,4 +103,4 @@ void usbd_hub_add_interface(usbd_class_t *devclass, usbd_interface_t *intf)
     intf->vendor_handler = NULL;
     intf->notify_handler = hub_notify_handler;
     usbd_class_add_interface(devclass, intf);
-}
+}

class/hub/usbh_hub.c

@@ -516,4 +516,4 @@ CLASS_INFO_DEFINE const struct usbh_class_info hub_class_info = {
     .vid = 0x00,
     .pid = 0x00,
     .class_driver = &hub_class_driver
-};
+};

class/msc/usbh_msc.c

@@ -438,4 +438,4 @@ CLASS_INFO_DEFINE const struct usbh_class_info msc_class_info = {
     .vid = 0x00,
     .pid = 0x00,
     .class_driver = &msc_class_driver
-};
+};

class/msc/usbh_msc.h

@@ -51,4 +51,4 @@ extern "C" {
 }
 #endif
 
-#endif
+#endif

class/video/usbd_video.c

@@ -816,4 +816,4 @@ void usbd_video_mjpeg_payload_header_toggle(uint8_t *output, uint32_t packets)
 
 __WEAK void usbd_video_sof_callback(void)
 {
-}
+}

class/wireless/usbd_rndis.h

@@ -46,4 +46,4 @@ void usbd_rndis_add_interface(usbd_class_t *devclass, usbd_interface_t *intf);
 }
 #endif
 
-#endif
+#endif