remove unnecessary #include "yuv.h"

Change-Id: I8b277433663e063e7a182f66818afec1654a39bd
diff --git a/src/dsp/lossless.c b/src/dsp/lossless.c
index 8fae7f0..5702eb3 100644
--- a/src/dsp/lossless.c
+++ b/src/dsp/lossless.c
@@ -20,7 +20,6 @@
 #include "../dec/vp8li.h"
 #include "../utils/endian_inl.h"
 #include "./lossless.h"
-#include "./yuv.h"
 
 #define MAX_DIFF_COST (1e30f)