remove default destructors

src/muz/transforms/dl_mk_array_blast.cpp

@@ -38,9 +38,6 @@ namespace datalog {
         m_rewriter.updt_params(m_params);
     }
 
-    mk_array_blast::~mk_array_blast() {
-    }
-
     bool mk_array_blast::is_store_def(expr* e, expr*& x, expr*& y) {
         if (m.is_eq(e, x, y)) {
             if (!a.is_store(y)) {

src/muz/transforms/dl_mk_array_blast.h

@@ -64,8 +64,6 @@ namespace datalog {
            \brief Create rule transformer that removes array stores and selects by ackermannization.
         */
         mk_array_blast(context & ctx, unsigned priority);
-
-        ~mk_array_blast() override;
         
         rule_set * operator()(rule_set const & source) override;
 

src/muz/transforms/dl_mk_quantifier_abstraction.cpp

@@ -149,9 +149,6 @@ namespace datalog {
         m_mc(nullptr) {
     }
 
-    mk_quantifier_abstraction::~mk_quantifier_abstraction() {
-    }
-
     func_decl* mk_quantifier_abstraction::declare_pred(rule_set const& rules, rule_set& dst, func_decl* old_p) {
 
         if (rules.is_output_predicate(old_p)) {

src/muz/transforms/dl_mk_quantifier_abstraction.h

@@ -49,8 +49,6 @@ namespace datalog {
 
     public:
         mk_quantifier_abstraction(context & ctx, unsigned priority);
-
-        ~mk_quantifier_abstraction() override;
         
         rule_set * operator()(rule_set const & source) override;
     };

src/muz/transforms/dl_mk_quantifier_instantiation.cpp

@@ -41,9 +41,6 @@ namespace datalog {
         m_cnst2var(m) {        
     }
 
-    mk_quantifier_instantiation::~mk_quantifier_instantiation() {        
-    }
-
     void mk_quantifier_instantiation::extract_quantifiers(rule& r, expr_ref_vector& conjs, quantifier_ref_vector& qs) {
         conjs.reset();
         qs.reset();

src/muz/transforms/dl_mk_quantifier_instantiation.h

@@ -60,8 +60,6 @@ namespace datalog {
     public:
         mk_quantifier_instantiation(context & ctx, unsigned priority);
 
-        ~mk_quantifier_instantiation() override;
-        
         rule_set * operator()(rule_set const & source) override;
     };
 

src/muz/transforms/dl_mk_scale.cpp

@@ -110,9 +110,6 @@ namespace datalog {
         m_eqs(m) {
     }
 
-    mk_scale::~mk_scale() {
-    }
-
     rule_set * mk_scale::operator()(rule_set const & source) {
         if (!m_ctx.scale()) {
             return nullptr;

src/muz/transforms/dl_mk_scale.h

@@ -42,7 +42,6 @@ namespace datalog {
         app_ref mk_constraint(unsigned num_vars, app* q);
     public:
         mk_scale(context & ctx, unsigned priority = 33039);
-        ~mk_scale() override;
         rule_set * operator()(rule_set const & source) override;
     };