[gimp/metadata-browser] app: forgot to remove extract_alpha_region()'s declaration

[Roman Joost <romanofski src gnome org>]

commit 08f9e9aa48db32b81700a87da4445a75c1f6e89b
Author: Michael Natterer <mitch gimp org>
Date:   Tue Mar 20 15:10:41 2012 +0100

    app: forgot to remove extract_alpha_region()'s declaration

 app/paint-funcs/paint-funcs.h |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/app/paint-funcs/paint-funcs.h b/app/paint-funcs/paint-funcs.h
index ceb6726..12aa620 100644
--- a/app/paint-funcs/paint-funcs.h
+++ b/app/paint-funcs/paint-funcs.h
@@ -289,10 +289,6 @@ void  copy_region                         (PixelRegion *src,
 void  add_alpha_region                    (PixelRegion *src,
                                            PixelRegion *dest);
 
-void  extract_alpha_region                (PixelRegion *src,
-                                           PixelRegion *mask,
-                                           PixelRegion *dest);
-
 void  convolve_region                     (PixelRegion         *srcR,
                                            PixelRegion         *destR,
                                            const gfloat        *matrix,