Remove a stray LeaveCriticalSection() from mciavi.drv

[Dmitry Timoshkov]

Hello,

Changelog:
    Dmitry Timoshkov <dmitry at codeweavers.com>
    Remove a stray LeaveCriticalSection() from mciavi.drv.

--- cvs/hq/wine/dlls/winmm/mciavi/mmoutput.c    2004-01-01 15:33:54.000000000 +0800
+++ wine/dlls/winmm/mciavi/mmoutput.c   2004-01-01 18:02:21.000000000 +0800
@@ -604,7 +604,5 @@ LRESULT MCIAVI_DrawFrame(WINE_MCIAVI* wm
        ReleaseDC(wma->hWndPaint, hDC);
     }
 
-    LeaveCriticalSection(&wma->cs);
-
     return TRUE;
 }