media: dvb_vb2: get rid of DVB_BUF_TYPE_OUTPUT

This is currently unused. So, get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

include/media/dvb_vb2.h

@@ -24,7 +24,6 @@
 
 enum dvb_buf_type {
 	DVB_BUF_TYPE_CAPTURE        = 1,
-	DVB_BUF_TYPE_OUTPUT         = 2,
 };
 
 #define DVB_VB2_STATE_NONE (0x0)