parallels: remove connection wide wait timeout

parallels: remove connection wide wait timeout

We have a lot of passing arguments code just to pass connection
object cause it holds jobTimeout. Taking into account that
right now this value is defined at compile time let's just
get rid of it and make arguments list more clear in many
places.

In case we later need some runtime configurable timeout
value we can provide this value through arguments
function already operate such as a parallels domain
object etc as this timeouts are operation( and thus
object) specific in practice.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@parallels.com>