Fix clang warning: result of comparison of constant 128 with expression of...

Fix clang warning: result of comparison of constant 128 with expression of type 'std::vector<char>::value_type is always true.

src/Remapstat.cc

@@ -413,7 +413,7 @@ void check_vmask(std::vector<char> vmask)
   constexpr int max_vals = 128;
   size_t vm[max_vals] = { 0 };
   const auto size = vmask.size();
-  for (size_t i = 0; i < size; ++i) if (vmask[i] >= 0 && vmask[i] < max_vals) vm[(int)vmask[i]]++;
+  for (size_t i = 0; i < size; ++i) if (vmask[i] >= 0) vm[(int)vmask[i]]++;
   for (int i = 0; i < max_vals; ++i) if (vm[i]) cdoPrint("Number of source values: %d --> %zu/%zu", i, vm[i], size);
   size_t sum = 0;
   for (int i = 1; i < max_vals; ++i) sum += vm[i];