Update OperatorImpl.hpp

include/aidge/backend/OperatorImpl.hpp

@@ -9,12 +9,11 @@
  *
  ********************************************************************************/
 
-#ifndef AIDGE_OPERATORIMPL_H_
-#define AIDGE_OPERATORIMPL_H_
+#ifndef AIDGE_BACKEND_OPERATORIMPL_H_
+#define AIDGE_BACKEND_OPERATORIMPL_H_
 
-#include <cstddef>
+#include <string>
 #include <vector>
-#include <memory>
 
 #include "aidge/utils/Types.h"
 
@@ -83,4 +82,4 @@ protected:
 };
 } // namespace Aidge
 
-#endif /* AIDGE_OPERATORIMPL_H_ */
+#endif /* AIDGE_BACKEND_OPERATORIMPL_H_ */