vp8_decode_frame: remove dead increment

Change-Id: Ie9a6fac02796d24e6f4a15416d0b4c19010547df

vp8/decoder/decodeframe.c

diff --git a/vp8/decoder/decodeframe.c b/vp8/decoder/decodeframe.c
index ab03c90..4f404bd 100644
--- a/vp8/decoder/decodeframe.c
+++ b/vp8/decoder/decodeframe.c
@@ -1069,7 +1069,6 @@
                 pc->vert_scale = clear[6] >> 6;
             }
             data += 7;
-            clear += 7;
         }
         else
         {