remove unset($this)

ext · ext · commit 9907d3fdfd4a · 2016-12-22T18:10:03.000+01:00
It makes no sense anyway
diff --git a/BasicObject.php b/BasicObject.php
@@ -628,7 +628,6 @@ public function delete() {
 			}
 			$stmt->close();
 		}
-		unset($this);
 	}
 
 	/**
