doc-rst: vidioc-g-edid remove a duplicate declaration

The ioctl is declared twice. This causes the following warning:
	/devel/v4l/patchwork/Documentation/linux_tv/media/v4l/vidioc-g-edid:7:

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
1 file changed