remove unused function

(cherry picked from commit eab7c1c6)

matlab/prior_statistics.m

-function pstat = prior_statistics(info,M_,bayestopt_,options_)
-% This function computes various statistics associated with the prior distribution.
-%
-% INPUTS 
-%   info        [integer]    1*p vector.  
-%   M_          [structure]  Model description.
-%   bayestopt_  [structure]  Prior distribution description.  
-%   options_    [structure]  Global options of Dynare.
-%    
-% OUTPUTS:
-%   pstat       [structure]  Various statistics 
-%
-% SPECIAL REQUIREMENTS
-%   none 
-
-% Copyright (C) 2009 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare is free software: you can redistribute it and/or modify
-% it under the terms of the GNU General Public License as published by
-% the Free Software Foundation, either version 3 of the License, or
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-% GNU General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-if ~info(0)
-    results = prior_sampler(1,M_,bayestopt_,options_);
-    results.prior.mass
-end
\ No newline at end of file