cacheio.c:216:21: warning: unused variable 'stb' [-Wunused-variable]

Signed-off-by: Steve Dickson <steved@redhat.com>
diff --git a/support/nfs/cacheio.c b/support/nfs/cacheio.c
index 73f4be4..bd4da0e 100644
--- a/support/nfs/cacheio.c
+++ b/support/nfs/cacheio.c
@@ -213,7 +213,6 @@
 void
 cache_flush(void)
 {
-	struct stat stb;
 	int c;
 	char stime[32];
 	char path[200];