Removed unused function.

Removed commented out code.
Renamed fillNewLinkedInstances to fillLinkedInstances.
Streamline show instance content if a show goes from unlinked to linked.

airtime_mvc/application/models/airtime/CcShow.php

@@ -295,24 +295,6 @@ class CcShow extends BaseCcShow {
         }
         return $instanceIds;
     }
-    
-    /*
-     * Returns all show instances ordered by 'starts' column in desc order.
-     */
-    public function getInstanceIdsSortedByMostRecentStartTime()
-    {
-        $instances = CcShowInstancesQuery::create()
-            ->filterByCcShow($this)
-            ->filterByDbModifiedInstance(false)
-            ->orderByDbStarts(Criteria::DESC)
-            ->find();
-            
-        $instanceIdsDescOrder = array();
-        foreach ($instances as $instance) {
-            $instanceIdsDescOrder[] = $instance->getDbId();
-        }
-        return $instanceIdsDescOrder;
-    }
 
     //what is this??
     public function getOtherInstances($instanceId)