diff --git a/include/forcing/AsyncDataProvider.hpp b/include/forcing/AsyncDataProvider.hpp
deleted file mode 100644
index bbaf793a41..0000000000
--- a/include/forcing/AsyncDataProvider.hpp
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef NGEN_ASYNC_DATA_PROVIDER
-#define NGEN_ASYNC_DATA_PROVIDER
-
-#include "DataProvider.hpp"
-
-namespace data_access
-{
-    template <class data_type, class selection_type> class AsyncDataProvider : public DataProvider<data_type, selection_type>
-    {
-        virtual bool value_ready(selection_type selector, const std::string &variable_name, const time_t &init_time, const long &duration_s,
-                                 const std::string &output_units, ReSampleMethod m=SUM) = 0;
-
-        virtual void request_value(selection_type selector, const std::string &variable_name, const time_t &init_time, const long &duration_s,
-                                 const std::string &output_units, ReSampleMethod m=SUM) = 0;
-    };
-}
-
-#endif
\ No newline at end of file