[Piglit] [PATCH] glx-swap-event: Remove unused variable.

[Vinson Lee]

Fixes this GCC warning.
glx-swap-event.c: In function ‘draw_frame’:
glx-swap-event.c:122:12: warning: variable ‘dt’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Vinson Lee <vlee at vmware.com>
---
 tests/glx/glx-swap-event.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/tests/glx/glx-swap-event.c b/tests/glx/glx-swap-event.c
index 0377dac..313c565 100644
--- a/tests/glx/glx-swap-event.c
+++ b/tests/glx/glx-swap-event.c
@@ -119,12 +119,11 @@ draw_frame(Display *dpy, Window win)
     static int frames = 0, async_swap;
     static double tRot0 = -1.0, tRate0 = -1.0;
     static double swap_freq[2];
-    double dt, t = current_time();
+    double t = current_time();
     int tem, ret;
     
     if (tRot0 < 0.0)
         tRot0 = t;
-    dt = t - tRot0;
     tRot0 = t;
     
     if (tRate0 < 0.0)
-- 
1.7.7.3