pidgin/pidgin

Clean up PurpleWhiteboardManager

19 months ago, Gary Kramlich
14beb80abb20
Clean up PurpleWhiteboardManager

Implement the GListModel interface backed by a GPtrArray.
Remove the for_each method as it's not used or necessary with a model.

Testing Done:
Ran the unit tests and built the docs.

Reviewed at https://reviews.imfreedom.org/r/2082/
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