Remove smart gwt filters

Hi Team,

We are currently using:-
BuildDate Wed Mar 05 15:52:00 IST 2014
Version 4.1p
SCVersionNumber v9.1p_2014-03-05

In my list grid i am applying filters using :-
setShowFilterEditor(true)


My requirement is to to remove these filters on some click of button i.e. i want to call a function that removes these filter criterias
But want to retain other customisations that i have done on my list grid i.e i cannot redraw my list grid completely.
So is there any function available for my requirement?

Your help is appreciated.
Thanks