Paginated Report Calendar Date picker restriction

Hi,

I need to restrict Caledar date picker starting from 01-01-2019 in Calenda parameter.

If I open  Calendar parameter it should not show left arrow which I highlighted below. 

This is a paginated report.

Note: I can create another dataset query by writing sql query restrict the date range. (Which I do not want to do, last option)

But, I wanted to write an expression in default values in Report  paratamers properties.

           I am able to get 2019 but it is showing left arrow in calendar where i can select 2018 as well which I dont want see.   =dateadd("m",0,dateserial(2019,month(Today),1))