Remove warning for host default ALOHAOBJ constructor

Author: Qubitol

madgraph/iolibs/template_files/madmatrix/cpp_hel_amps_h.inc

@@ -42,7 +42,7 @@ namespace mg5amcCpu
       fptype * w;
       int flv_index;
 
-      __host__ __device__ ALOHAOBJ() = default;
+      __host__ __device__ ALOHAOBJ() {}
       __host__ __device__ ALOHAOBJ(fptype_sv * pvec_sv, cxtype_sv * w_sv, int flv = -1)
           : pvec(pvec_sv), w(reinterpret_cast<fptype*>(w_sv)), flv_index(flv) {}
   };