Driver: hv: vmbus: drop a no long applicable comment

None of the things mentioned in the comment is initialized in hv_init.
They've been moved elsewhere.

Signed-off-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20200506160806.118965-1-wei.liu@kernel.org


Reviewed-by: Michael Kelley <mikelley@microsoft.com>