dmaengine: at_xdmac: Drop always true check

The code in cause is already in the else case of
'if (at_xdmac_chan_is_cyclic(atchan))', drop the redundant check.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: NLudovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/20200123140237.125799-7-tudor.ambarus@microchip.comSigned-off-by: NVinod Koul <vkoul@kernel.org>

drivers/dma/at_xdmac.c

@@ -1656,11 +1656,9 @@ static void at_xdmac_tasklet(unsigned long data)
 		at_xdmac_remove_xfer(atchan, desc);
 		spin_unlock(&atchan->lock);
 
-		if (!at_xdmac_chan_is_cyclic(atchan)) {
 		dma_cookie_complete(txd);
 		if (txd->flags & DMA_PREP_INTERRUPT)
 			dmaengine_desc_get_callback_invoke(txd, NULL);
-		}
 
 		dma_run_dependencies(txd);