remove unneeded destruct methods as GC has higher performance (#6631)

Co-authored-by: Tim Fry <tim@voipstratus.com>

core/events/resources/classes/events.php

@@ -54,16 +54,6 @@ class events {
 			$this->required['headers'][] = "user_uuid";
 	}
 
-	/**
-	 * Called when there are no references to a particular object
-	 * unset the variables used in the class
-	 */
-	public function __destruct() {
-		foreach ($this as $key => $value) {
-			unset($this->$key);
-		}
-	}
-
 	/**
 	 * This function will load all available plugins into the memory
 	 * Rules: