Bug fix. Do not override option lik_init (declared in the estimation command) if unit_root_vars

keyword is present in the mod file, by forcing options_.lik_init to be equal to 3 (diffuse kalman
filter).

matlab/dynare_estimation_init.m

@@ -304,7 +304,6 @@ if ~isempty(options_.unit_root_vars)
         bayestopt_.restrict_var_list_nonstationary = ...
             nonzeros(l2(:,bayestopt_.restrict_var_list_nonstationary));
     end
-    options_.lik_init = 3;
 end % if ~isempty(options_.unit_root_vars)
 
 % Test if the data file is declared.