Removing support for include statements

[Rainer Müller]

On 2010-05-26 18:11 , Rainer Müller wrote:
> with MacPorts 1.9 we will begin to store Portfiles into the registry to
> run activate/deactivate hooks later. For this, we cannot use the include
> statement anymore as sourced files are not being stored in the registry
> and therefore would not be available later.

Done in r68206/r68207 on trunk, merged to release_1_9 in r68209.

Rainer