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/include/media/rc-map.h b/include/media/rc-map.h
index 280d1ed..5833966 100644
--- a/include/media/rc-map.h
+++ b/include/media/rc-map.h
@@ -13,11 +13,10 @@
 
 #define IR_TYPE_UNKNOWN	0
 #define IR_TYPE_RC5	(1  << 0)	/* Philips RC5 protocol */
-#define IR_TYPE_PD	(1  << 1)	/* Pulse distance encoded IR */
-#define IR_TYPE_NEC	(1  << 2)
-#define IR_TYPE_RC6	(1  << 3)	/* Philips RC6 protocol */
-#define IR_TYPE_JVC	(1  << 4)	/* JVC protocol */
-#define IR_TYPE_SONY	(1  << 5)	/* Sony12/15/20 protocol */
+#define IR_TYPE_NEC	(1  << 1)
+#define IR_TYPE_RC6	(1  << 2)	/* Philips RC6 protocol */
+#define IR_TYPE_JVC	(1  << 3)	/* JVC protocol */
+#define IR_TYPE_SONY	(1  << 4)	/* Sony12/15/20 protocol */
 #define IR_TYPE_OTHER	(1u << 31)
 
 struct ir_scancode {