[devel] Remove extra png_debug() from png_write_find_filter()

in pngwutil.c, that was recently added by mistake.
diff --git a/CHANGES b/CHANGES
index 5ca673d..3ff193e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2208,6 +2208,7 @@
   Changed png_ptr and info_ptr member "trans" to "trans_alpha".
 
 version 1.4.0beta75 [August 13, 2009]
+  Removed an extra png_debug() recently added to png_write_find_filter().
 
 version 1.4.0betaN [future]
   Build shared libraries with -lz and sometimes -lm.