Remove unused test variable

From: Tim Smith <tim.smith@citrix.com>


---
 testsuite/tests/c-api/alloc_async_stubs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testsuite/tests/c-api/alloc_async_stubs.c b/testsuite/tests/c-api/alloc_async_stubs.c
index 7dec51e..6278819 100644
--- a/testsuite/tests/c-api/alloc_async_stubs.c
+++ b/testsuite/tests/c-api/alloc_async_stubs.c
@@ -8,7 +8,7 @@ value stub(value ref)
 {
   CAMLparam1(ref);
   CAMLlocal2(x, y);
-  int i; char* s; intnat coll_before;
+  char* s; intnat coll_before;
 
   printf("C, before: %d\n", Int_val(Field(ref, 0)));
 
