V4L/DVB (5968): videodev2.h: remove superfluous FBUF GLOBAL_INV_ALPHA support

There is no need for a global inverted alpha capability since all the
application has to do is to pass '255-alpha' as the global alpha value.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

include/linux/videodev2.h

@@ -617,7 +617,6 @@ struct v4l2_framebuffer
 #define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
 #define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
-#define V4L2_FBUF_CAP_GLOBAL_INV_ALPHA	0x0080
 /*  Flags for the 'flags' field. */
 #define V4L2_FBUF_FLAG_PRIMARY		0x0001
 #define V4L2_FBUF_FLAG_OVERLAY		0x0002
@@ -625,7 +624,6 @@ struct v4l2_framebuffer
 #define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
-#define V4L2_FBUF_FLAG_GLOBAL_INV_ALPHA	0x0040
 
 struct v4l2_clip
 {