Remove problematic and unused populated_factory
Remove problematic and unused populated_factory

This was a helper method that wrapped various other factories.

Loading it defined :populated as a private method on Object, causing
all sorts of "fun" issues with our Proposal.populated named scope. :(

osbridge/openconferenceware,osbridge/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware,osbridge/openconferenceware,mynameisfashanu/openconferenceware,mynameisfashanu/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware