Removed dropping and recreating cc_schedule table index before inserting into this table.

We thought it would be a significant performance booster but it isn't

airtime_mvc/application/models/Scheduler.php

@@ -527,10 +527,6 @@ class Application_Model_Scheduler
 
             $linked = false;
 
-            $dropIndex_sql = "DROP INDEX cc_schedule_instance_id_idx";
-            Application_Common_Database::prepareAndExecute(
-                $dropIndex_sql, array(), Application_Common_Database::EXECUTE);
-
             foreach ($scheduleItems as $schedule) {
                 $id = intval($schedule["id"]);
 
@@ -817,11 +813,6 @@ class Application_Model_Scheduler
                 }//for each instance
             }//for each schedule location
 
-            $createIndex_sql = "CREATE INDEX cc_schedule_instance_id_idx ".
-                "ON cc_schedule USING btree(instance_id)";
-            Application_Common_Database::prepareAndExecute(
-                $createIndex_sql, array(), Application_Common_Database::EXECUTE);
-
             $endProfile = microtime(true);
             Logging::debug("finished adding scheduled items.");
             Logging::debug(floatval($endProfile) - floatval($startProfile));

airtime_mvc/application/services/SchedulerService.php

@@ -177,10 +177,6 @@ class Application_Service_SchedulerService
             $timeFilled = Application_Common_Database::prepareAndExecute(
                 $timeFilled_sql, array(), Application_Common_Database::COLUMN);
 
-            $dropIndex_sql = "DROP INDEX cc_schedule_instance_id_idx";
-            Application_Common_Database::prepareAndExecute(
-                $dropIndex_sql, array(), Application_Common_Database::EXECUTE);
-
             //need to find out which linked instances are empty
             $values = array();
             foreach ($instanceIds as $id) {
@@ -240,11 +236,6 @@ class Application_Service_SchedulerService
             Application_Common_Database::prepareAndExecute(
                 $insert_sql, array(), Application_Common_Database::EXECUTE);
 
-            $createIndex_sql = "CREATE INDEX cc_schedule_instance_id_idx ".
-                "ON cc_schedule USING btree(instance_id)";
-            Application_Common_Database::prepareAndExecute(
-                $createIndex_sql, array(), Application_Common_Database::EXECUTE);
-
             //update time_filled in cc_show_instances
             $now = gmdate("Y-m-d H:i:s");
             $update_sql = "UPDATE cc_show_instances SET ".