Strip empty lines at the end of classes

src/pocketmine/permission/BanList.php

@@ -185,5 +185,4 @@ class BanList{
 			MainLogger::getLogger()->error("Could not save ban list");
 		}
 	}
-
 }

src/pocketmine/permission/Permission.php

@@ -255,6 +255,4 @@ class Permission{
 		return new Permission($name, $desc, $default, $children);
 
 	}
-
-
 }