Revert "Added TicketAudit to the client so that it could be used via $client->ticketAudits()->findAll((array('ticket_id'=>3)));"

This reverts commit 9ce0c837097610b0ebc7707d09270c4f07b515f0.
Revert "Added ability to pass urlEncode in the search params to disable the url encoding when required for the zendesk api."

This reverts commit 47edd943a5c6811587df88b67032ff8065ea83f3.