Remove stale entity code to avoid confusion

[jefferya]

Two modules contain code to edit/search entities. The stale, deprecated code should be removed with any useful features ported to the new (e.g., error handling). Note: this could be done in conjuction with the TEI entities work.

Review:
https://github.com/cwrc/cwrc_entities

Depreciate (and pull out useful bits):
https://github.com/cwrc/Islandora-CWRC-Writer/blob/master/includes/entity.inc

[SusanBrown]

@ajmacdonald Is this straight-forward and if so can we assign this to you?

[ajmacdonald]

@SusanBrown this code is in PHP which isn't something I'm very familiar with

[ilovan]

@ajmacdonald , could you do it though if you checked in with @jefferya along the way?

[ajmacdonald]

@ilovan as a last resort I could try it but I would warn that this is outside of my expertise in two areas: Drupal and PHP

[SusanBrown]

@nikathone We think you could undertake this. Please consult as needed.