Update CHANGELOG.md

Author: unclead

CHANGELOG.md

@@ -4,9 +4,6 @@ Yii2 multiple input change log
 2.15.1 (in development)
 =======================
 - #220 fixed error message for clientValidation and ajaxValidation (antkaz)
-
-2.15.1 (for review)
-=======================
 - #228 added `iconMap` and `iconSource`property for MultipleInput and TabularInput
 - #228 changed the following methods to support icon class:
     BaseColumn->renderDragColumn(), TableRenderer->renderCellContent(), BaseRenderer->prepareButtons()