Staging: vt6655: Remove BBvCalculateParameter comment.

Remove comment that refers to function that no longer exists.

Signed-off-by: Briana Oursler <briana.oursler@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://lore.kernel.org/r/20200328200331.136265-1-briana.oursler@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>