Remove workaround for mod_perl

[thaljef]

At https://github.com/andk/pause/blob/master/lib/PAUSE/pmfile.pm#L41 there is a workaround ( cough hack cough ) that allows mod_perl to use a magical version.pm file to declare all the packages in the distribution. I'm sure it seemed reasonable at the time, but this seems way too subtle and one-off for the long term.

Could we remove that workaround and steer the mod_perl guys toward using a more normal means of package discovery (preferably, by declaring the provides field in the META)?