staging: unisys: visorbus: Remove duplicate invocation of init_rcv_bufs()

Removes the invocation to init_rcv_bufs() in visornic_resume() because that
function is already called in visornic_enable_with_timeout().

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>