selftests/vm/write_to_hugetlbfs.c: fix unused variable warning

Remove unused variable "i", which was triggering a compiler warning.

Fixes: 29750f7 ("hugetlb_cgroup: add hugetlb_cgroup reservation tests")
Signed-off-by: John Hubbard <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-By: Mina Almasry <[email protected]>
Cc: Brian Geffon <[email protected]>
Cc: "Kirill A . Shutemov" <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Ralph Campbell <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

tools/testing/selftests/vm/write_to_hugetlbfs.c

@@ -74,8 +74,6 @@ int main(int argc, char **argv)
 	int write = 0;
 	int reserve = 1;
 
-	unsigned long i;
-
 	if (signal(SIGINT, sig_handler) == SIG_ERR)
 		err(1, "\ncan't catch SIGINT\n");