[PATCH liburing] test/iopoll: Fix clang CI build failure

[Gabriel Krisman Bertazi <krisman@suse.de>]

Clang CI builds in liburing repo do -Werror,-Wunused-but-set-global when
building with clang.  commit c5eead26 ("test/iopoll: fix over-eager
no_hybrid check") left a lingering variable that was not used, and clang
got smart enough to find for it, causing the build to fail for every
commit ever since.

https://github.com/axboe/liburing/actions/runs/30404555586/job/90427017716
https://github.com/axboe/liburing/actions/runs/30404555586/job/90427017742

Fixes: c5eead26 ("test/iopoll: fix over-eager no_hybrid check")
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
 test/iopoll.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/test/iopoll.c b/test/iopoll.c
index 98230657..d68fde10 100644
--- a/test/iopoll.c
+++ b/test/iopoll.c
@@ -23,7 +23,6 @@
 static struct iovec *vecs;
 static int no_buf_select;
 static int no_iopoll;
-static int no_hybrid;
 
 static int provide_buffers(struct io_uring *ring)
 {
@@ -372,10 +371,8 @@ static int test_io(const char *file, int write, int sqthread, int fixed,
 		return 0;
 	}
 	if (ret != T_SETUP_OK) {
-		if (ring_flags & IORING_SETUP_HYBRID_IOPOLL) {
-			no_hybrid = 1;
+		if (ring_flags & IORING_SETUP_HYBRID_IOPOLL)
 			return 0;
-		}
 		fprintf(stderr, "ring create failed: %d\n", ret);
 		return 1;
 	}
-- 
2.55.0