V4L/DVB: ir-core: remove IR_TYPE_PD

Pulse-distance is not a protocol, it is a line coding (used by some protocols,
like NEC). Looking at the uses of IR_TYPE_PD, the real protocol seems to be
NEC in all cases (drivers/media/video/cx88/cx88-input.c is the only user).

So, remove IR_TYPE_PD while it is still easy to do so.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c
index 7673334..e185289 100644
--- a/drivers/media/video/cx88/cx88-input.c
+++ b/drivers/media/video/cx88/cx88-input.c
@@ -272,7 +272,7 @@
 		break;
 	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 		ir_codes = RC_MAP_CINERGY_1400;
-		ir_type = IR_TYPE_PD;
+		ir_type = IR_TYPE_NEC;
 		ir->sampling = 0xeb04; /* address */
 		break;
 	case CX88_BOARD_HAUPPAUGE:
@@ -375,18 +375,18 @@
 	case CX88_BOARD_PROF_7301:
 	case CX88_BOARD_PROF_6200:
 		ir_codes = RC_MAP_TBS_NEC;
-		ir_type = IR_TYPE_PD;
+		ir_type = IR_TYPE_NEC;
 		ir->sampling = 0xff00; /* address */
 		break;
 	case CX88_BOARD_TEVII_S460:
 	case CX88_BOARD_TEVII_S420:
 		ir_codes = RC_MAP_TEVII_NEC;
-		ir_type = IR_TYPE_PD;
+		ir_type = IR_TYPE_NEC;
 		ir->sampling = 0xff00; /* address */
 		break;
 	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
 		ir_codes         = RC_MAP_DNTV_LIVE_DVBT_PRO;
-		ir_type          = IR_TYPE_PD;
+		ir_type          = IR_TYPE_NEC;
 		ir->sampling     = 0xff00; /* address */
 		break;
 	case CX88_BOARD_NORWOOD_MICRO: