Fix _starpu_datawizard_progress prototype: it does not actually return anything

src/datawizard/datawizard.c

@@ -58,7 +58,7 @@ int __starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc, unsig
 	return ret;
 }
 
-int _starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc)
+void _starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc)
 {
 	__starpu_datawizard_progress(memory_node, may_alloc, 1);
 }

src/datawizard/datawizard.h

@@ -34,6 +34,6 @@
 #include <core/dependencies/implicit_data_deps.h>
 
 int __starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc, unsigned push_requests);
-int _starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc);
+void _starpu_datawizard_progress(unsigned memory_node, unsigned may_alloc);
 
 #endif // __DATAWIZARD_H__