remove superfluous #include

Originally committed as revision 9690 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/png.h b/libavcodec/png.h
index c407efd..1e95ba2 100644 (file)
--- a/libavcodec/png.h
+++ b/libavcodec/png.h
@@ -23,7 +23,6 @@
 #define AVCODEC_PNG_H
 
 #include <stdint.h>
-#include <zlib.h>
 
 #define PNG_COLOR_MASK_PALETTE    1
 #define PNG_COLOR_MASK_COLOR      2