removed condition classes, functions and operators

source/orm/orm/session.cpp

@@ -1,10 +1,10 @@
 #include "matador/orm/session.hpp"
 
 #include "matador/sql/backend_provider.hpp"
+#include "matador/sql/dialect.hpp"
 
 #include "matador/query/query.hpp"
 
-#include <queue>
 #include <stdexcept>
 
 namespace matador::orm {

source/orm/orm/session_query_builder.cpp

@@ -30,7 +30,7 @@ void session_query_builder::append_join(const sql::column &left, const sql::colu
   using namespace matador::query;
   entity_query_data_.joins.push_back({
     {right.table_},
-    make_condition(left == right)
+    left == right
   });
 }
 }