SDL: testmouse.c: remove unused local var.

From e967f00271cca8e72b4687ec6f228eb059e0d704 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 10 Sep 2021 00:01:20 +0300
Subject: [PATCH] testmouse.c: remove unused local var.

---
 test/testmouse.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/test/testmouse.c b/test/testmouse.c
index f4cb1338e0..65e7a3b8f6 100644
--- a/test/testmouse.c
+++ b/test/testmouse.c
@@ -74,9 +74,8 @@ AppendLine(Line *line)
 }
 
 void
-loop()
+loop(void)
 {
-    int i;
     SDL_Event event;
 
     /* Check for events */