Drop DECLARE_ALIGNED from extern declarations. It creates trouble when

swscale_internal.h is #included without HAVE_AV_CONFIG_H defined.

Originally committed as revision 28498 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

libswscale/swscale_internal.h

@@ -309,8 +309,8 @@ static inline int fmt_depth(int fmt)
     }
 }
 
-extern const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]);
+extern const uint64_t ff_dither4[2];
-extern const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]);
+extern const uint64_t ff_dither8[2];
 
 extern const AVClass sws_context_class;