Replace cmath with math.h

include/aidge/backend/cpu/operator/HeavisideImpl_kernels.hpp

@@ -15,8 +15,7 @@
 #include "aidge/utils/Registrar.hpp"
 
 #include <cstddef> // std::size_t
-#define _USE_MATH_DEFINES
-#include <cmath>
+#include <math.h>
 
 #include "aidge/backend/cpu/operator/HeavisideImpl.hpp"
 #include "aidge/utils/ErrorHandling.hpp"