Remove trailing newlines before the end of class definitions

src/MDUnitsSet.php

@@ -37,5 +37,4 @@ public static function getWeightUnitsTLed(MDTlLoader $tlLoader):array {
         return parent::getTlUnsortedList($tlLoader, self::UNITS_WEIGHT, "units_weight_set", "units_weight_set");
 
     }
-
 }