dwmmc: remove printf even under bootverbose

Remove two debugging printfs, even if hidden under boot -v.
They seemed to be of debug nature and always spit onto the
console when running camcontrol devlist -v.

Reviewed by:	manu
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25962

sys/dev/mmc/host/dwmmc.c

@@ -1461,9 +1461,6 @@ dwmmc_cam_action(struct cam_sim *sim, union ccb *ccb)
 	{
 		struct ccb_trans_settings *cts = &ccb->cts;
 
-		if (bootverbose)
-			device_printf(sc->dev, "Got XPT_GET_TRAN_SETTINGS\n");
-
 		cts->protocol = PROTO_MMCSD;
 		cts->protocol_version = 1;
 		cts->transport = XPORT_MMCSD;
@@ -1481,8 +1478,7 @@ dwmmc_cam_action(struct cam_sim *sim, union ccb *ccb)
 	}
 	case XPT_SET_TRAN_SETTINGS:
 	{
-		if (bootverbose)
-			device_printf(sc->dev, "Got XPT_SET_TRAN_SETTINGS\n");
+
 		dwmmc_cam_settran_settings(sc, ccb);
 		ccb->ccb_h.status = CAM_REQ_CMP;
 		break;