avcodec/cdtoons: Remove superfluous ;

The second ; in a double ;; is actually a null statement. It triggers
the typical declaration-after-statement compiler-warnings if it occurs
in the middle of several declarations (like here).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/cdtoons.c

@@ -61,7 +61,7 @@ static int cdtoons_render_sprite(AVCodecContext *avctx, const uint8_t *data,
 {
     CDToonsContext *c = avctx->priv_data;
     const uint8_t *next_line = data;
-    const uint8_t *end = data + data_size;;
+    const uint8_t *end = data + data_size;
     uint16_t line_size;
     uint8_t *dest;
     int skip = 0, to_skip, x;