media: Documentation/media: Remove incorrect statement

I tried to debug streaming in libcamera, where I stumbled upon this.
I asked around on IRC where I was told that this statement in the
documentation is wrong, so I'm submitting a removal.
Signed-off-by: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

Documentation/userspace-api/media/v4l/vidioc-streamon.rst

@@ -43,8 +43,7 @@ the capture or output process during streaming
 Capture hardware is disabled and no input buffers are filled (if there
 are any empty buffers in the incoming queue) until ``VIDIOC_STREAMON``
 has been called. Output hardware is disabled and no video signal is
-produced until ``VIDIOC_STREAMON`` has been called. The ioctl will
-succeed when at least one output buffer is in the incoming queue.
+produced until ``VIDIOC_STREAMON`` has been called.
 
 Memory-to-memory devices will not start until ``VIDIOC_STREAMON`` has
 been called for both the capture and output stream types.