[libFuzzer] fix the bot (the no-assert build)
@@ -549,6 +549,7 @@ size_t MutationDispatcher::MutateWithMask(uint8_t *Data, size_t Size,
assert(!T.empty());
size_t NewSize = Mutate(T.data(), OneBits, OneBits);
assert(NewSize <= OneBits);
+ (void)NewSize;
// Even if NewSize < OneBits we still use all OneBits bytes.
for (size_t I = 0, J = 0; I < Size; I++)
if (Mask[I])
