remove unadapted watch for new Individuals in the eukaryotic case

src/libaevol/7/ExpManager_7.cpp

@@ -523,6 +523,7 @@ void ExpManager_7::do_mutation(int indiv_id) {
     current_individuals[indiv_id]->last_id = indiv_id;
     }
 
+    #ifndef __EUKARYOTE
     if (exp_m_->record_tree()) {
       int x = indiv_id / exp_m_->world()->height();
       int y = indiv_id % exp_m_->world()->height();
@@ -534,6 +535,7 @@ void ExpManager_7::do_mutation(int indiv_id) {
       exp_m_->tree()->update_new_indiv(eindiv);
       delete eindiv;
     }
+    #endif
 
 #ifdef WITH_PERF_TRACES_PER_INDIV
     apply_mutation[indiv_id] = -1;