staging: unisys: visorbus: get rid of gotos in intialize_controlvm_payload_info

Get rid of the gotos in initialize_controlvm_payload_info. The check in
the error path if payload was valid was never called so get rid of that
as well.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Timothy Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>