remove solver_old

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/api/api_context.cpp

@@ -209,22 +209,6 @@ namespace api {
         } }
     }
 
-#if 0
-    void context::persist_ast(ast * n, unsigned num_scopes) {
-        // persist_ast is irrelevant when m_user_ref_count == true
-        if (m_user_ref_count)
-            return;
-        if (num_scopes > m_ast_lim.size()) {
-            num_scopes = m_ast_lim.size();
-        }
-        SASSERT(m_replay_stack.size() > num_scopes);
-        unsigned j = m_replay_stack.size() - num_scopes - 1;
-        if (!m_replay_stack[j]) {
-            m_replay_stack[j] = alloc(ast_ref_vector, m());
-        }
-        m_replay_stack[j]->push_back(n);
-    }
-#endif
 
     void context::save_ast_trail(ast * n) {
         SASSERT(m().contains(n));

src/api/api_solver.cpp

@@ -6,7 +6,8 @@ Module Name:
     api_solver.cpp
 
 Abstract:
-    New solver API
+
+    Solver API
 
 Author:
 

src/api/api_solver_old.cpp

@@ -1,33 +0,0 @@
-/*++
-Copyright (c) 2012 Microsoft Corporation
-
-Module Name:
-
-    api_solver_old.cpp
-
-Abstract:
-    OLD API for using solvers.
-
-    This has been deprecated
-
-Author:
-
-    Leonardo de Moura (leonardo) 2012-02-29.
-
-Revision History:
-
---*/
-#include<iostream>
-#include"z3.h"
-#include"api_log_macros.h"
-#include"api_context.h"
-
-
-void Z3_display_statistics(Z3_context c, std::ostream& s) {
-    mk_c(c)->get_smt_kernel().display_statistics(s);
-}
-
-void Z3_display_istatistics(Z3_context c, std::ostream& s) {
-    mk_c(c)->get_smt_kernel().display_istatistics(s);
-}
-

src/api/z3_api.h

@@ -1552,8 +1552,6 @@ extern "C" {
 
        \conly \sa Z3_del_context
 
-       \conly \deprecated Use #Z3_mk_context_rc
-
        def_API('Z3_mk_context', CONTEXT, (_in(CONFIG),))
     */
 #ifdef CorML3