Remove all calls to _rtw_spinlock_free()

This routine is empty, thus all calls to it can be removed.

Link: https://lore.kernel.org/r/20210805183717.23007-4-Larry.Finger@lwfinger.net

hal/rtl8192e/rtl8192e_dm.c

@@ -326,6 +326,5 @@ void rtl8192e_deinit_dm_priv(IN PADAPTER Adapter)
 {
 	PHAL_DATA_TYPE	pHalData = GET_HAL_DATA(Adapter);
 	struct dm_struct		*podmpriv = &pHalData->odmpriv;
-	/* _rtw_spinlock_free(&pHalData->odm_stainfo_lock);		 */
 	odm_cancel_all_timers(podmpriv);
 }