[f-spot] Obsolete PngFile as well.

[Ruben Vermeersch <rubenv src gnome org>]

commit a5668d1170d745fe453b336af2eaf004b4e4dc68
Author: Ruben Vermeersch <ruben savanne be>
Date:   Fri Jul 2 11:28:19 2010 +0200

    Obsolete PngFile as well.

 src/Imaging/ImageFile.cs |    2 +-
 src/Imaging/PngFile.cs   | 1234 ----------------------------------------------
 src/Makefile.am          |    1 -
 3 files changed, 1 insertions(+), 1236 deletions(-)
---
diff --git a/src/Imaging/ImageFile.cs b/src/Imaging/ImageFile.cs
index 89bf12d..7ac39c1 100644
--- a/src/Imaging/ImageFile.cs
+++ b/src/Imaging/ImageFile.cs
@@ -58,7 +58,7 @@ namespace FSpot.Imaging {
 			name_table [".pcx"] = typeof (ImageFile);
 			name_table [".jpeg"] = typeof (TagLibFile);
 			name_table [".jpg"] = typeof (TagLibFile);
-			name_table [".png"] = typeof (FSpot.Imaging.Png.PngFile);
+			name_table [".png"] = typeof (TagLibFile);
 			name_table [".cr2"] = typeof (FSpot.Imaging.Tiff.Cr2File);
 			name_table [".nef"] = typeof (FSpot.Imaging.Tiff.NefFile);
 			name_table [".pef"] = typeof (FSpot.Imaging.Tiff.NefFile);
diff --git a/src/Makefile.am b/src/Makefile.am
index fe5f0c6..13dc597 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -95,7 +95,6 @@ SOURCES = \
 	Imaging/MrwFile.cs \
 	Imaging/OrderedWriter.cs \
 	Imaging/PixelBuffer.cs \
-	Imaging/PngFile.cs \
 	Imaging/PnmFile.cs \
 	Imaging/RafFile.cs \
 	Imaging/SvgFile.cs \