have tusb_init() return true instead of TUSB_ERROR_NONE

src/class/bth/bth_device.c

@@ -249,7 +249,7 @@ bool btd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t
     if (tud_bt_acl_data_sent_cb) tud_bt_acl_data_sent_cb((uint16_t)xferred_bytes);
   }
 
-  return TUSB_ERROR_NONE;
+  return true;
 }
 
 #endif

src/common/tusb_error.h

@@ -54,6 +54,7 @@
     ENTRY(TUSB_ERROR_FAILED                          )\
 
 /// \brief Error Code returned
+/// TODO obsolete and to be remove
 typedef enum
 {
   ERROR_TABLE(ERROR_ENUM)

src/tusb.c

@@ -52,7 +52,7 @@ bool tusb_init(void)
 
   _initialized = true;
 
-  return TUSB_ERROR_NONE;
+  return true;
 }
 
 bool tusb_inited(void)