nxp_fmuk66-e:DMA Poll not needed

boards/nxp/fmuk66-e/src/init.c

@@ -235,25 +235,6 @@ __EXPORT int board_app_initialize(uintptr_t arg)
 		syslog(LOG_ERR, "DMA alloc FAILED\n");
 	}
 
-	/* set up the serial DMA polling */
-#ifdef SERIAL_HAVE_DMA
-	static struct hrt_call serial_dma_call;
-	struct timespec ts;
-
-	/*
-	 * Poll at 1ms intervals for received bytes that have not triggered
-	 * a DMA event.
-	 */
-	ts.tv_sec = 0;
-	ts.tv_nsec = 1000000;
-
-	hrt_call_every(&serial_dma_call,
-		       ts_to_abstime(&ts),
-		       ts_to_abstime(&ts),
-		       (hrt_callout)kinetis_serial_dma_poll,
-		       NULL);
-#endif
-
 	/* initial LED state */
 	drv_led_start();
 	led_off(LED_RED);