fixed-benchmark: remove unused arguments in main

Fixed benchmark uses main(int argc, char *argv[])
but does not use the arguments, so we can replace them with void

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

tests/fixed-benchmark.c

@@ -96,7 +96,7 @@ benchmark(const char *s, void (*f)(void))
 	       s, elapsed.tv_sec, elapsed.tv_nsec);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
 	benchmark("noop", noop_conversion);
 	benchmark("magic", magic_conversion);