remove a function from lar_solver

Signed-off-by: Lev Nachmanson <[email protected]>

Author: levnach

src/math/lp/lar_solver.cpp

@@ -16,7 +16,6 @@ namespace lp {
     };
 
     struct imp {
-
         lar_solver &lra;
         var_register m_var_register;
         svector<column> m_columns;
@@ -1723,14 +1722,6 @@ namespace lp {
         return m_mpq_lar_core_solver.column_is_free(j);
     }
 
-    // below is the initialization functionality of lar_solver
-
-    lpvar lar_solver::add_named_var(unsigned ext_j, bool is_int, const std::string& name) {
-        lpvar j = add_var(ext_j, is_int);
-        m_imp->m_var_register.set_name(j, name);
-        return j;
-    }
-
     struct lar_solver::undo_add_column : public trail {
         lar_solver& s;
         undo_add_column(lar_solver& s) : s(s) {}

src/math/lp/lar_solver.h

@@ -296,8 +296,6 @@ class lar_solver : public column_namer {
         set_column_value(j, v);
     }
 
-    lpvar add_named_var(unsigned ext_j, bool is_integer, const std::string&);
-
     lp_status maximize_term(unsigned j_or_term, impq& term_max);
 
     inline core_solver_pretty_printer<lp::mpq, lp::impq> pp(std::ostream& out) const {