cleanup TabBar's ImplTabButton
cleanup TabBar's ImplTabButton

Change-Id: Ic77f322cce00885896343ce21e35db4e286aafda

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core