[gimp] app: remove obsolete #define GAMMA_CORRECTION_BLURB

[Michael Natterer <mitch src gnome org>]

commit af9fee00f4f7eea0c6c6ab234a84e0c8f4280704
Author: Michael Natterer <mitch gimp org>
Date:   Mon Mar 28 15:02:27 2016 +0200

    app: remove obsolete #define GAMMA_CORRECTION_BLURB

 app/config/gimprc-blurbs.h |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)
---
diff --git a/app/config/gimprc-blurbs.h b/app/config/gimprc-blurbs.h
index 8424599..6db8cd5 100644
--- a/app/config/gimprc-blurbs.h
+++ b/app/config/gimprc-blurbs.h
@@ -132,18 +132,6 @@ _("The window type hint that is set on dock windows and the toolbox " \
 #define FRACTALEXPLORER_PATH_BLURB \
 "Where to search for fractals used by the Fractal Explorer plug-in."
 
-#define GAMMA_CORRECTION_BLURB \
-"This setting is ignored."
-#if 0
-"Sets the gamma correction value for the display. 1.0 corresponds to no " \
-"gamma correction.  For most displays, gamma correction should be set " \
-"to between 2.0 and 2.6. One important thing to keep in mind: Many images " \
-"that you might get from outside sources will in all likelihood already " \
-"be gamma-corrected.  In these cases, the image will look washed-out if " \
-"GIMP has gamma-correction turned on.  If you are going to work with " \
-"images of this sort, turn gamma correction off by setting the value to 1.0."
-#endif
-
 #define GFIG_PATH_BLURB \
 "Where to search for Gfig figures used by the Gfig plug-in."